diff --git a/D02_PlanBase/D02_PlanBase_Router.py b/D02_PlanBase/D02_PlanBase_Router.py
index b61e39661..79d888bf0 100644
--- a/D02_PlanBase/D02_PlanBase_Router.py
+++ b/D02_PlanBase/D02_PlanBase_Router.py
@@ -1,16 +1,17 @@
-"""D 예정노선 1단계 기준 지정 — 연도별 시점 · 종점 정본 API (요구 345 · 요구서 3-2 · PLAN 529-3).
+"""D 예정노선 1단계 기준 지정 — 전체 시점 · 종점 두 점 정본 API (요구서 389 3장 1 · PLAN 560-2).
 
-- `GET /api/projects/{id}/plan/points` — 사업연도 연도마다 시점 · 종점(경위도 + TM) · 빈 = null
-- `PUT …/plan/points` — 경위도를 받아 서버가 TM 을 셈 → `plan_route_years` 행
+- `GET /api/projects/{id}/plan/points` — {epsg, start, end} · 점 = {lon, lat, x, y} · 빈 = null
+- `PUT …/plan/points` — {start: {lon, lat}, end: {lon, lat}} → TM 셈 → `projects.plan_base_json`
+  (`{"epsg", "start": {"x", "y"}, "end": {"x", "y"}}` · 좌표계 = 두 점 평균 경도의 TM 띠)
+- 칸이 비면(옛 프로젝트) 첫 연도 시점 + 마지막 연도 종점으로 접어 보임 · 연도 행은 D03 [저장] 몫.
+- 고침 = 산림청만(지정 회사 GET 은 공용 판정 `require_project_access` 몫).
 
-규칙: 직전 연도 종점 = 다음 연도 시점(서버가 맞춤 · 보낸 시점은 첫 연도만 씀) ·
-범위 밖 · 빈 연도 거절 · 좌표계 = 모든 지점 평균 경도의 TM 띠 한 벌 ·
-지점이 바뀐 연도는 분석 노선(route_json · fingerprint · confirmed_at) 비움 ·
-고침 = 산림청만(지정 회사 GET 은 공용 판정 `require_project_access` 몫).
+연도 잇기 꼴(`chain_years` · `with_tm` · `changed` · `_store`)은 D03 [저장]이 씀.
 """
 
 from __future__ import annotations
 
+import json
 from typing import Any
 from uuid import UUID
 
@@ -38,8 +39,9 @@ class YearPoints(BaseModel):
     end: LonLat | None = None
 
 
-class PointsRequest(BaseModel):
-    years: list[YearPoints]
+class BaseRequest(BaseModel):
+    start: LonLat | None = None
+    end: LonLat | None = None
 
 
 def chain_years(year_start: int, year_end: int, items: list[YearPoints]) -> list[dict[str, Any]]:
@@ -94,7 +96,7 @@ async def _load(project_id: UUID) -> tuple[dict[str, Any], dict[int, dict[str, A
         connection.cursor(aiomysql.DictCursor) as cursor,
     ):
         await cursor.execute(
-            "SELECT project_kind, project_year, project_year_end FROM projects"
+            "SELECT project_kind, project_year, project_year_end, plan_base_json FROM projects"
             " WHERE id = %s AND deleted_at IS NULL",
             (str(project_id),),
         )
@@ -157,50 +159,68 @@ def _point(x: Any, y: Any, epsg: Any) -> dict[str, float] | None:
     return {"lon": lon, "lat": lat, "x": float(x), "y": float(y)}
 
 
-def _view(project: dict[str, Any], rows: dict[int, dict[str, Any]]) -> dict[str, Any]:
-    start = int(project["project_year"])
-    end = int(project["project_year_end"] or start)
-    years = []
-    for year in range(start, end + 1):
-        row = rows.get(year) or {}
-        years.append(
-            {
-                "year": year,
-                "start": _point(row.get("start_x"), row.get("start_y"), row.get("epsg")),
-                "end": _point(row.get("end_x"), row.get("end_y"), row.get("epsg")),
-            }
-        )
-    epsgs = {int(r["epsg"]) for r in rows.values() if r.get("epsg") is not None}
+def base_view(project: dict[str, Any], rows: dict[int, dict[str, Any]]) -> dict[str, Any]:
+    """{epsg, start, end} — 정본 칸 · 비면 첫 연도 시점 + 마지막 연도 종점으로 접음."""
+    stored = project.get("plan_base_json")
+    if isinstance(stored, str):
+        stored = json.loads(stored)
+    if stored:
+        epsg, start, end = stored.get("epsg"), stored.get("start"), stored.get("end")
+    elif rows:
+        first, last = rows[min(rows)], rows[max(rows)]
+        epsg = first.get("epsg")
+        start = {"x": first.get("start_x"), "y": first.get("start_y")}
+        end = {"x": last.get("end_x"), "y": last.get("end_y")}
+    else:
+        epsg, start, end = None, None, None
     return {
-        "status": "success",
-        "year_start": start,
-        "year_end": end,
-        "epsg": epsgs.pop() if len(epsgs) == 1 else None,
-        "years": years,
+        "epsg": epsg,
+        "start": _point(start["x"], start["y"], epsg) if start else None,
+        "end": _point(end["x"], end["y"], epsg) if end else None,
     }
 
 
+async def load_base(project_id: UUID) -> dict[str, Any]:
+    """전체 시점 · 종점 — D03 이 읽는 길."""
+    project, rows = await _load(project_id)
+    return base_view(project, rows)
+
+
+def stored_base(payload: BaseRequest) -> dict[str, Any]:
+    """PUT 몸 → 정본 칸 꼴(TM m)."""
+    given = [p for p in (payload.start, payload.end) if p]
+    epsg = tm_epsg_for_lon(sum(p.lon for p in given) / len(given)) if given else None
+
+    def tm(p: LonLat | None) -> dict[str, float] | None:
+        if p is None or epsg is None:
+            return None
+        x, y = lonlat_to_tm(p.lon, p.lat, epsg)
+        return {"x": x, "y": y}
+
+    return {"epsg": epsg, "start": tm(payload.start), "end": tm(payload.end)}
+
+
+async def _store_base(project_id: UUID, base: dict[str, Any]) -> None:
+    async with get_db_pool().acquire() as connection, connection.cursor() as cursor:
+        await cursor.execute(
+            "UPDATE projects SET plan_base_json = %s WHERE id = %s",
+            (json.dumps(base), str(project_id)),
+        )
+
+
 @router.get("/{project_id}/plan/points", response_model=None)
 async def get_plan_points(project_id: UUID) -> dict[str, Any]:
-    project, rows = await _load(project_id)
-    return _view(project, rows)
+    return {"status": "success", **await load_base(project_id)}
 
 
 @router.put("/{project_id}/plan/points", response_model=None)
 async def put_plan_points(
     project_id: UUID,
-    payload: PointsRequest,
+    payload: BaseRequest,
     session: dict[str, Any] = Depends(require_company),
 ) -> dict[str, Any]:
     if not is_forest_service(session):
         raise HTTPException(status_code=403, detail="예정노선 지점은 산림청만 고칠 수 있습니다.")
-    project, old = await _load(project_id)
-    start = int(project["project_year"])
-    end = int(project["project_year_end"] or start)
-    epsg, rows = with_tm(chain_years(start, end, payload.years))
-    writes = [row for row in rows if changed(row, old.get(row["year"]), epsg)]
-    drops = [year for year in old if not start <= year <= end]
-    if writes or drops:
-        await _store(project_id, epsg, writes, drops)
-    _, now = await _load(project_id)
-    return {**_view(project, now), "changed_years": [row["year"] for row in writes]}
+    await _load(project_id)  # 없음 · 예정노선 아님 거절
+    await _store_base(project_id, stored_base(payload))
+    return {"status": "success", **await load_base(project_id)}
diff --git a/D02_PlanBase/D02_PlanBase_UI_Page.ts b/D02_PlanBase/D02_PlanBase_UI_Page.ts
index d4e9c89fb..d7320eeca 100644
--- a/D02_PlanBase/D02_PlanBase_UI_Page.ts
+++ b/D02_PlanBase/D02_PlanBase_UI_Page.ts
@@ -1,7 +1,6 @@
 /* =============================================================================
  * D02_PlanBase_UI_Page.ts
- * D02 1단계 기준 지정(요구서 345 3-2 · PLAN 529-3) — 메인 = 카카오맵 · 좌 = 연도 지점 표.
- *   지점 = 경계점 목록 P0..Pn(연도 i = P(i) → P(i+1)) · 직전 종점 = 다음 시점이 모양 그대로.
+ * D02 1단계 기준 지정(요구서 345 3-2 · 389 3장 1 · PLAN 560-2) — 메인 = 카카오맵 · 좌 = 전체 시점 · 종점.
  *   조작(끌기 · 지도 누름 · 경위도 입력) = sessionStorage 캐시 · [저장] · [>] = PUT 정본(서버가 TM 셈)
  *   · [>] = 저장 성공 뒤 D03 · 자동저장 없음(CLAUDE.md 5장).
  *   산림청이 아니면(지정 회사 = 보기만) 끌기 · 누름 · 입력 · [저장] 없음 · [>] = 그냥 D03.
@@ -34,13 +33,11 @@ interface ServerPoint extends LonLat {
   y: number;
 }
 interface PointsView {
-  year_start: number;
-  year_end: number;
   epsg: number | null;
-  years: Array<{ year: number; start: ServerPoint | null; end: ServerPoint | null }>;
+  start: ServerPoint | null;
+  end: ServerPoint | null;
 }
 
-const YEAR_COLORS = ["#E60046", "#1F6FEB", "#1A9E55", "#D97706", "#8B5CF6", "#0891B2"];
 const KOREA_CENTER: [number, number] = [127.8, 36.3];
 const DIGITS = 7; // 경위도 소수 7 자리 ≈ 1 cm
 
@@ -58,10 +55,10 @@ async function request<T>(path: string, init?: RequestInit): Promise<T> {
   return data as T;
 }
 
-/** 서버 연도 행 → 경계점 목록(연도 수 + 1) */
+/** 서버 두 점 → [시점, 종점] */
 function boundaryPoints(view: PointsView): Array<LonLat | null> {
   const pick = (p: ServerPoint | null): LonLat | null => (p ? { lon: p.lon, lat: p.lat } : null);
-  return [pick(view.years[0]?.start ?? null), ...view.years.map((y) => pick(y.end))];
+  return [pick(view.start), pick(view.end)];
 }
 
 export async function renderD02PlanBase(root: HTMLElement): Promise<void> {
@@ -88,13 +85,7 @@ export async function renderD02PlanBase(root: HTMLElement): Promise<void> {
   let active: number | null = null; // 지도 누름이 놓을 지점
   let editable = false; // 산림청만 고침
 
-  const years = (): number[] => (view ? view.years.map((y) => y.year) : []);
-  const pointName = (i: number): string => {
-    const ys = years();
-    if (i === 0) return `${ys[0]} ${t("D02_Start")}`;
-    if (i === ys.length) return `${ys[i - 1]} ${t("D02_End")}`;
-    return `${ys[i - 1]} ${t("D02_End")} · ${ys[i]} ${t("D02_Start")}`;
-  };
+  const pointName = (i: number): string => t(i === 0 ? "D02_Start" : "D02_End");
   const firstEmpty = (): number | null => {
     const i = points.findIndex((p) => !p);
     return i < 0 ? null : i;
@@ -126,19 +117,17 @@ export async function renderD02PlanBase(root: HTMLElement): Promise<void> {
     const pins: MapPin[] = points.flatMap((p, i) =>
       p ? [{ key: String(i), name: pointName(i), lon: p.lon, lat: p.lat, movable: editable }] : [],
     );
-    const lines: Array<Array<[number, number]>> = [];
-    const colors: string[] = [];
-    years().forEach((_, i) => {
-      const a = points[i];
-      const b = points[i + 1];
-      if (!a || !b) return;
-      lines.push([
-        [a.lat, a.lon],
-        [b.lat, b.lon],
-      ]);
-      colors.push(YEAR_COLORS[i % YEAR_COLORS.length]);
-    });
-    map.set(pins, lines, colors, focus);
+    const [a, b] = points;
+    const lines: Array<Array<[number, number]>> =
+      a && b
+        ? [
+            [
+              [a.lat, a.lon],
+              [b.lat, b.lon],
+            ],
+          ]
+        : [];
+    map.set(pins, lines, undefined, focus);
   }
 
   function drawTable(): void {
@@ -186,17 +175,13 @@ export async function renderD02PlanBase(root: HTMLElement): Promise<void> {
           lat,
         ],
       });
-      const color = YEAR_COLORS[Math.min(i, years().length - 1) % YEAR_COLORS.length];
-      row.style.setProperty("--d02-year-color", color);
       return row;
     });
     table.replaceChildren(...rows);
-    const saved = view?.years.find((y) => y.start);
+    const saved = view?.start;
     info.textContent = view?.epsg
       ? `${t("D02_Saved_Crs")} EPSG:${view.epsg}` +
-        (saved?.start
-          ? ` · ${saved.year} X ${saved.start.x.toFixed(3)} Y ${saved.start.y.toFixed(3)}`
-          : "")
+        (saved ? ` · X ${saved.x.toFixed(3)} Y ${saved.y.toFixed(3)}` : "")
       : t("D02_Not_Saved");
   }
 
@@ -214,9 +199,7 @@ export async function renderD02PlanBase(root: HTMLElement): Promise<void> {
     if (!view) return false;
     showLoadingOverlay();
     try {
-      const body = {
-        years: years().map((year, i) => ({ year, start: points[i], end: points[i + 1] })),
-      };
+      const body = { start: points[0], end: points[1] };
       adopt(
         await request<PointsView>(`/projects/${projectId}/plan/points`, {
           method: "PUT",
diff --git a/D02_PlanBase/D02_PlanBase_UI_Style.css b/D02_PlanBase/D02_PlanBase_UI_Style.css
index 39cf82ad8..fe70a3929 100644
--- a/D02_PlanBase/D02_PlanBase_UI_Style.css
+++ b/D02_PlanBase/D02_PlanBase_UI_Style.css
@@ -1,4 +1,4 @@
-/* D02 기준 지정(529-3) — 메인 지도 = 본문 높이 가득 · 좌 연도 지점 표 */
+/* D02 기준 지정(529-3 · 560-2) — 메인 지도 = 본문 높이 가득 · 좌 시점 · 종점 표 */
 .d02-map {
   height: calc(100dvh - var(--app-header-h));
 }
@@ -20,7 +20,7 @@
   gap: 4px;
   align-items: center;
   padding: 4px 6px;
-  border-left: 4px solid var(--d02-year-color);
+  border-left: 4px solid var(--draw-primary);
   border-radius: 4px;
 }
 
diff --git a/E03_StabSection/E03_StabSection_Router.py b/E03_StabSection/E03_StabSection_Router.py
index d7da920a5..9b86ec5ed 100644
--- a/E03_StabSection/E03_StabSection_Router.py
+++ b/E03_StabSection/E03_StabSection_Router.py
@@ -21,6 +21,7 @@ import base64
 import hashlib
 import json
 import logging
+import math
 import os
 import subprocess
 import sys
@@ -32,8 +33,10 @@ from typing import Any
 from uuid import UUID
 
 import numpy as np
+import shapely
 from fastapi import APIRouter, Depends, HTTPException
 from pydantic import BaseModel
+from scipy.spatial import cKDTree
 
 from common_util.common_util_auth import verify_session
 from common_util.common_util_derived_store import (
@@ -73,6 +76,9 @@ ENGINE_FILES = (
 )
 #: 3D 보기 노선면 솎음 간격(m)
 CORRIDOR_STEP_M = 1.0
+TERRAIN_MARGIN_M = 80.0  # 노선면 둘레 지형 띠 폭(B05 지형 띠 여유와 같음)
+TERRAIN_STEP_M = 2.0  # 지형 칸(이보다 촘촘히 안 함)
+TERRAIN_MAX_CELLS = 250_000  # 응답 크기 상한 — 넘으면 칸을 키움
 #: 프로세스 수 — None = 코어 − 2 · 1 = 서버 안에서 차례로(시험)
 WORKERS: int | None = None
 
@@ -435,10 +441,49 @@ async def put_representative(project_id: UUID, payload: RepresentativeRequest) -
     return {"overrides": overrides}
 
 
+def _terrain(dtm: str, origin: list[float], strips: list[np.ndarray]) -> dict[str, Any] | None:
+    """설계 지형 격자(E 복사본 DTM) — 노선면 둘레 띠만 · 노면 발자국 안 = None(깎기 지형이 노면을
+    덮지 않게 · 가장자리 틈 한 칸 허용). 꼴 = E04 Grid + z(행 우선 iy·nx+ix) · 리본과 같은 원점."""
+    try:
+        sampler = DtmGridSampler.open_cached(dtm)
+    except (OSError, ValueError, KeyError):
+        logger.warning("E03 3D 지형 격자 못 엶: %s", dtm)
+        return None
+    pts = np.vstack([p.reshape(-1, 3)[:, :2] for p in strips])
+    lo = pts.min(axis=0) - TERRAIN_MARGIN_M
+    hi = pts.max(axis=0) + TERRAIN_MARGIN_M
+    area = float(np.prod(hi - lo))
+    dx = max(TERRAIN_STEP_M, math.ceil(math.sqrt(area / TERRAIN_MAX_CELLS) * 10) / 10)
+    nx, ny = (np.floor((hi - lo) / dx).astype(int) + 1).tolist()
+    xx, yy = np.meshgrid(lo[0] + np.arange(nx) * dx, lo[1] + np.arange(ny) * dx)
+    flat = np.column_stack([xx.ravel(), yy.ravel()])
+    near = np.isfinite(cKDTree(pts).query(flat, distance_upper_bound=TERRAIN_MARGIN_M)[0])
+    # 발자국 = 리본마다 첫 열 + 끝 열(거꾸로) 다각형의 합집합
+    rings = [np.vstack([p[:, 0, :2], p[::-1, -1, :2]]) for p in strips if len(p) >= 2]
+    foot = shapely.union_all([shapely.make_valid(shapely.Polygon(r)) for r in rings])
+    hole = shapely.contains_xy(foot, flat[:, 0], flat[:, 1])
+    z, valid = sampler.sample_xy(flat + np.asarray(origin[:2]))
+    keep = near & valid & ~hole & np.isfinite(z)
+    local = np.round(z - origin[2], 2)
+    return {
+        "grid": {
+            "x0": round(float(lo[0]), 3),
+            "y0": round(float(lo[1]), 3),
+            "dx": dx,
+            "nx": nx,
+            "ny": ny,
+        },
+        "z": [float(v) if k else None for v, k in zip(local.tolist(), keep.tolist())],
+    }
+
+
 @lru_cache(maxsize=2)
-def _corridor3d(path: str, _stamp: tuple[int, int]) -> dict[str, Any]:
+def _corridor3d(
+    path: str, _stamp: tuple[int, int], dtm: str | None, _dtm_stamp: tuple[int, int] | None
+) -> dict[str, Any]:
     data = json.loads(Path(path).read_text(encoding="utf-8"))
     ribbons = []
+    strips = []
     origin = None
     for ribbon in data.get("ribbons") or []:
         cols = int(ribbon["colCount"])
@@ -453,6 +498,7 @@ def _corridor3d(path: str, _stamp: tuple[int, int]) -> dict[str, Any]:
         if keep[-1] != len(chain) - 1:
             keep = np.r_[keep, len(chain) - 1]
         local = pos[keep] - np.asarray(origin)
+        strips.append(local)
         ribbons.append(
             {
                 "kind": ribbon["kind"],
@@ -462,15 +508,25 @@ def _corridor3d(path: str, _stamp: tuple[int, int]) -> dict[str, Any]:
                 "positions": np.round(local, 3).reshape(-1).tolist(),
             }
         )
-    return {"origin": origin, "ribbons": ribbons}
+    terrain = _terrain(dtm, origin, strips) if dtm and origin and strips else None
+    return {"origin": origin, "ribbons": ribbons, "terrain": terrain}
 
 
 @router.get("/{project_id}/stab/corridor3d", response_model=None)
 async def corridor3d(project_id: UUID) -> dict[str, Any]:
-    """복사본 노선면 — 원점 빼고 1 m 솎음(모델 좌표 x · y · z)."""
+    """복사본 노선면 — 원점 빼고 1 m 솎음(모델 x · y · z) + 설계 지형 격자(노면 구멍)."""
     root, _ = await e02._project(project_id)
-    path = src.corridor_path(src.source_dir(root))
+    source = src.source_dir(root)
+    path = src.corridor_path(source)
     if not path:
         raise HTTPException(status_code=404, detail="복사본에 노선면이 없습니다.")
     stat = path.stat()
-    return await asyncio.to_thread(_corridor3d, str(path), (stat.st_mtime_ns, stat.st_size))
+    try:
+        dtm = src.terrain_grid_path(source)
+        dtm_stat = dtm.stat()
+        dtm_key = (str(dtm), (dtm_stat.st_mtime_ns, dtm_stat.st_size))
+    except (OSError, FileNotFoundError):
+        dtm_key = (None, None)
+    return await asyncio.to_thread(
+        _corridor3d, str(path), (stat.st_mtime_ns, stat.st_size), *dtm_key
+    )
diff --git a/E03_StabSection/E03_StabSection_UI_Style.css b/E03_StabSection/E03_StabSection_UI_Style.css
index e1225726f..598b87117 100644
--- a/E03_StabSection/E03_StabSection_UI_Style.css
+++ b/E03_StabSection/E03_StabSection_UI_Style.css
@@ -27,6 +27,7 @@
   --e03-critical: #0b0b0b;
   --e03-surface-line: #52514e;
   --e03-plot: #fcfcfb;
+  --e03-terrain: #c9c2a8;
 }
 
 :root[data-theme="dark"] {
@@ -49,6 +50,7 @@
   --e03-critical: #f0efec;
   --e03-surface-line: #c3c2b7;
   --e03-plot: #1a1a19;
+  --e03-terrain: #5b5646;
 }
 
 @media (prefers-color-scheme: dark) {
@@ -72,6 +74,7 @@
     --e03-critical: #f0efec;
     --e03-surface-line: #c3c2b7;
     --e03-plot: #1a1a19;
+    --e03-terrain: #5b5646;
   }
 }
 
diff --git a/E03_StabSection/E03_StabSection_UI_View3D.ts b/E03_StabSection/E03_StabSection_UI_View3D.ts
index 5ea6b5006..70518fe4b 100644
--- a/E03_StabSection/E03_StabSection_UI_View3D.ts
+++ b/E03_StabSection/E03_StabSection_UI_View3D.ts
@@ -3,6 +3,7 @@
  * E03 [3D 보기](PLAN 532-3) — 복사본 노선면(GET …/stab/corridor3d · 1 m 솎음)에 측점 안전율 색칠(표시만).
  *   색 = 가장 가까운 측점의 그 조건 최소 (안전율 ÷ 기준) 띠(횡단 등안전율과 같은 띠 · logic `bandIndex`) ·
  *   해석 없는 측점 = 회색. createRouteViewer 는 DB 지표면 · 색 고리가 없어 쓰지 않고 three 를 바로 씀.
+ *   설계 지형 = 응답 `terrain`(E 복사본 DTM · 노면 자리 구멍 · 요구 390) → E04 `terrainMesh` · 한 색 · 켬끔.
  * ========================================================================== */
 
 import * as THREE from "three";
@@ -10,7 +11,9 @@ import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";
 import { el } from "@ui/ui_template_elements";
 import { t } from "@ui/ui_template_locale";
 import { openModal } from "@ui/ui_template_modal";
-import { legend, muted } from "./E03_StabSection_UI_Parts";
+import { terrainMesh } from "../E04_Stab3D/logic/E04_Stab3D_Mesh";
+import type { Grid } from "../E04_Stab3D/logic/E04_Stab3D_Raster";
+import { check, legend, muted } from "./E03_StabSection_UI_Parts";
 import {
   bandIndex,
   RATIO_BREAKS,
@@ -27,6 +30,8 @@ interface Corridor3d {
     chainages: number[];
     positions: number[];
   }[];
+  /** 설계 지형 — z 행 우선(iy·nx+ix) · null = 노면 구멍 · 띠 밖 · 복사본에 격자 없으면 null */
+  terrain?: { grid: Grid; z: (number | null)[] } | null;
 }
 
 /** 측점 하나 그 조건 최소 비(안전율 ÷ 기준)의 띠 */
@@ -61,9 +66,16 @@ export async function openView3d(
     color: `var(--e03-band-${i})`,
   }));
   items.push({ label: t("E03_Verdict_none"), color: "var(--e03-none)" });
+  let ground: THREE.Mesh | null = null;
   const legendRow = el("div", {
     className: "e03-legend",
-    children: [muted(`${conditionLabel} · ${t("E03_View3d_Legend")}`), legend(items)],
+    children: [
+      muted(`${conditionLabel} · ${t("E03_View3d_Legend")}`),
+      legend(items),
+      ...(data.terrain
+        ? [check(t("E03_View3d_Terrain"), true, (v) => ground && (ground.visible = v))]
+        : []),
+    ],
   });
   const host = el("div", { className: "e03-view3d__canvas" });
   let teardown = (): void => undefined;
@@ -145,6 +157,30 @@ export async function openView3d(
   }
   scene.add(group);
 
+  // 설계 지형 — 모델 [x, y, z] → three [x, z, −y](리본과 같음) · 노면과 겹치는 곳은 뒤로 밀어 둠
+  if (data.terrain) {
+    const mesh = terrainMesh(data.terrain.grid, data.terrain.z);
+    const pos = new Float32Array(mesh.positions.length);
+    for (let i = 0; i < pos.length; i += 3) {
+      pos.set([mesh.positions[i], mesh.positions[i + 2], -mesh.positions[i + 1]], i);
+    }
+    const geometry = new THREE.BufferGeometry();
+    geometry.setAttribute("position", new THREE.BufferAttribute(pos, 3));
+    geometry.setIndex(new THREE.BufferAttribute(mesh.indices, 1));
+    geometry.computeVertexNormals();
+    ground = new THREE.Mesh(
+      geometry,
+      new THREE.MeshLambertMaterial({
+        color: cssColor("--e03-terrain"),
+        side: THREE.DoubleSide,
+        polygonOffset: true,
+        polygonOffsetFactor: 1,
+        polygonOffsetUnits: 1,
+      }),
+    );
+    scene.add(ground);
+  }
+
   const box = new THREE.Box3().setFromObject(group);
   const sphere = box.getBoundingSphere(new THREE.Sphere());
   const camera = new THREE.PerspectiveCamera(45, 1, 0.5, Math.max(sphere.radius * 20, 1000));
@@ -178,12 +214,15 @@ export async function openView3d(
       (n, m) => n + ((m as THREE.Mesh).geometry.getAttribute("position").count ?? 0),
       0,
     ),
+    terrain: ground?.geometry.getAttribute("position").count ?? 0,
   };
 
   const dispose = (): void => {
     cancelAnimationFrame(frame);
     observer.disconnect();
     controls.dispose();
+    ground?.geometry.dispose();
+    (ground?.material as THREE.Material | undefined)?.dispose();
     group.traverse((o) => {
       if (o instanceof THREE.Mesh) {
         o.geometry.dispose();
diff --git a/E06_StabRock/E06_StabRock_UI_Page.ts b/E06_StabRock/E06_StabRock_UI_Page.ts
index fa66bf777..ce94a8e73 100644
--- a/E06_StabRock/E06_StabRock_UI_Page.ts
+++ b/E06_StabRock/E06_StabRock_UI_Page.ts
@@ -1,11 +1,11 @@
 /* =============================================================================
  * E06_StabRock_UI_Page.ts
  * E06 암반 평사투영 해석(요구 345 · 351 · 요구서 4-2 2차 · PLAN 536-1) — B05~B09 틀(group_workflow).
- *   좌 = 절리군 표 · 해석 설정 · [초기화] [저장] [해석]
+ *   좌 = 절리군 표 · 해석 설정 · [초기화] [해석]
  *   가운데 = 위험 띠 · 스테레오넷(등각 · 등면적 · 보기 = 전체 · 평면 · 쐐기 · 전도)
  *   우 = 측점별 모드 수 · 최소 안전율 · 판정 · 고른 측점 안전율 표
- *   조작 = sessionStorage 캐시만(자동저장 없음) · [저장] = PUT · [초기화] = POST …/reset ·
- *   [해석] = 저장 안 한 고침이 있으면 먼저 저장 → POST …/analyze(서버 단독) → 결과 GET.
+ *   조작 = sessionStorage 캐시만(자동저장 없음) · [초기화] = POST …/reset ·
+ *   [해석] = 저장(고침이 있으면 PUT) → POST …/analyze(서버 단독) → 결과 GET · 저장 단추 없음.
  * ========================================================================== */
 
 import "./E06_StabRock_UI_Style.css";
@@ -88,11 +88,6 @@ export function renderE06StabRock(root: HTMLElement): void {
   // ---- 좌 ----
   const cards = el("div", { className: "e06-cards" });
   const status = el("div", { className: "e06-status" });
-  const saveButton = createButton({
-    label: t("Common_Btn_Save"),
-    variant: "ghost",
-    onClick: () => void save(),
-  });
   const resetButton = createButton({
     label: t("Common_Btn_Reset"),
     variant: "danger-ghost",
@@ -103,9 +98,9 @@ export function renderE06StabRock(root: HTMLElement): void {
     variant: "filled",
     onClick: () => void analyze(),
   });
-  saveButton.disabled = resetButton.disabled = analyzeButton.disabled = true;
+  resetButton.disabled = analyzeButton.disabled = true;
   const actions = el("div", { className: "ui-sidebar-actions" });
-  actions.append(resetButton, saveButton, analyzeButton);
+  actions.append(resetButton, analyzeButton);
   panel.append(note(t("E06_Note")), cards, status, actions);
   attachCollapsible(cards);
 
@@ -274,7 +269,7 @@ export function renderE06StabRock(root: HTMLElement): void {
     if (!cached) sessionStorage.removeItem(cacheKey(projectId));
     view.doc = cached ? (JSON.parse(cached) as JointsDoc) : body.joints;
     dirty = Boolean(cached);
-    saveButton.disabled = resetButton.disabled = analyzeButton.disabled = !view.editable;
+    resetButton.disabled = analyzeButton.disabled = !view.editable;
     renderCards();
   };
 
@@ -292,20 +287,6 @@ export function renderE06StabRock(root: HTMLElement): void {
     return true;
   }
 
-  async function save(): Promise<void> {
-    showLoadingOverlay();
-    try {
-      if (await putJoints()) {
-        showToast(t("E06_Saved"), "success");
-        await loadResult();
-      }
-    } catch (error) {
-      showToast(error instanceof Error ? error.message : t("Common_Status_Error"), "error");
-    } finally {
-      hideLoadingOverlay();
-    }
-  }
-
   async function reset(): Promise<void> {
     if (!view?.editable) return;
     const ok = await showConfirmDialog(
diff --git a/E07_StabArea/E07_StabArea_Router.py b/E07_StabArea/E07_StabArea_Router.py
index 159cf7d51..9ab353736 100644
--- a/E07_StabArea/E07_StabArea_Router.py
+++ b/E07_StabArea/E07_StabArea_Router.py
@@ -1,7 +1,7 @@
 """E07 광역 자연사면 위험 지도 API (요구 345 · 351 · 요구서 4-2 2차 · PLAN 536-2).
 
-- `POST /api/projects/{id}/stab/area/analyze` — 해석(뒤에서) · 입력 지문이 저장본과 같으면
-  `cached` · force = 다시
+- `POST /api/projects/{id}/stab/area/analyze` — 해석(뒤에서) · 입력 지문(복사본 · 설정 · E02 물성 ·
+  엔진 파일 해시)이 저장본과 같으면 `cached` · force = 다시(시험 · 관리용)
 - `GET …/stab/area/progress` — 진행률
 - `GET …/stab/area` — 기본값(E02 붕적토) · 물성 목록 · 노선 · 측점 · 저장본(격자 · 측점표 · 요약)
 
@@ -26,6 +26,7 @@ import logging
 import time
 from collections.abc import Callable
 from datetime import datetime
+from functools import lru_cache
 from pathlib import Path
 from typing import Any, Literal
 from uuid import UUID
@@ -46,7 +47,8 @@ from E07_StabArea import E07_StabArea_Engine as engine
 logger = logging.getLogger(__name__)
 router = APIRouter(prefix="/api/projects", tags=["E07 Stab Area"])
 
-ENGINE_VERSION = "e07-3"  # 엔진 판 — 바뀌면 지문이 달라져 다시 셈
+ENGINE_FILES = ("E07_StabArea_Engine.py", "E07_StabArea_Router.py")  # 엔진 판 = 이 파일들 해시
+MATERIAL_KEYS = ("gamma_t", "gamma_sat", "c", "phi")
 RESULT = Path("E07_StabArea") / "_derived" / "area.json"
 DEFAULT_MATERIAL = "colluvium"  # 표층 붕괴에 가장 취약(지식DB 안정성평가/04 붕적토)
 RANGE_C_KPA, RANGE_PHI_DEG = (
@@ -122,8 +124,33 @@ def defaults(project_root: Path) -> dict[str, Any]:
     }
 
 
-def fingerprint(source_fingerprint: str, settings: dict[str, Any]) -> str:
-    body = {"source": source_fingerprint, "settings": settings, "engine": ENGINE_VERSION}
+@lru_cache(maxsize=1)
+def engine_hash() -> str:
+    """엔진 코드 지문 — 코드가 바뀌면 지문이 달라져 다시 셈."""
+    digest = hashlib.sha1()
+    for name in ENGINE_FILES:
+        digest.update((Path(__file__).parent / name).read_bytes())
+    return digest.hexdigest()[:12]
+
+
+def ground_material(project_root: Path, material_id: str | None) -> dict[str, Any] | None:
+    """E02 물성 값(고른 id · 없으면 붕적토) — 지문에 넣어 E02 가 바뀌면 옛 결과가 됨."""
+    materials = _ground(project_root).get("materials") or []
+    mat = next((m for m in materials if m.get("id") == material_id), None) or next(
+        (m for m in materials if m.get("id") == DEFAULT_MATERIAL), None
+    )
+    return {k: mat.get(k) for k in ("id", *MATERIAL_KEYS)} if mat else None
+
+
+def fingerprint(
+    source_fingerprint: str, settings: dict[str, Any], ground: dict[str, Any] | None = None
+) -> str:
+    body = {
+        "source": source_fingerprint,
+        "settings": settings,
+        "ground": ground,
+        "engine": engine_hash(),
+    }
     text = json.dumps(body, ensure_ascii=False, sort_keys=True)
     return hashlib.sha1(text.encode("utf-8")).hexdigest()
 
@@ -216,7 +243,7 @@ def run(
     }
     doc = {
         "fingerprint": finger,
-        "engine": ENGINE_VERSION,
+        "engine": engine_hash(),
         "settings": settings,
         "computed_at": datetime.now().isoformat(timespec="seconds"),
         "elapsed_s": round(time.perf_counter() - started, 2),
@@ -275,7 +302,11 @@ async def analyze(project_id: UUID, payload: AreaRequest) -> dict[str, Any]:
     project_root = await _project_root(project_id)
     root = _source_root(project_root)
     settings = payload.model_dump(exclude={"force"})
-    finger = fingerprint(source.manifest(root)["source_fingerprint"], settings)
+    finger = fingerprint(
+        source.manifest(root)["source_fingerprint"],
+        settings,
+        ground_material(project_root, settings["material_id"]),
+    )
     saved = await asyncio.to_thread(load, project_root)
     if not payload.force and saved and saved["fingerprint"] == finger:
         return {"status": "cached", "summary": saved["summary"]}
@@ -311,7 +342,11 @@ async def progress(project_id: UUID) -> dict[str, Any]:
 def _overview(project_root: Path, root: Path) -> dict[str, Any]:
     saved = load(project_root)
     if saved:
-        current = fingerprint(source.manifest(root)["source_fingerprint"], saved["settings"])
+        current = fingerprint(
+            source.manifest(root)["source_fingerprint"],
+            saved["settings"],
+            ground_material(project_root, saved["settings"].get("material_id")),
+        )
         saved["stale"] = saved["fingerprint"] != current
     return {
         "defaults": defaults(project_root),
diff --git a/E07_StabArea/E07_StabArea_UI_Page.ts b/E07_StabArea/E07_StabArea_UI_Page.ts
index 2cee76c17..32ae7397e 100644
--- a/E07_StabArea/E07_StabArea_UI_Page.ts
+++ b/E07_StabArea/E07_StabArea_UI_Page.ts
@@ -4,7 +4,8 @@
  *   좌 = 토층 물성(E02 물성 고름 · 범위) · 시나리오(표준 습윤지수 T/R · 최악 완전 포화) · 노선 띠 · [해석] · 진행률
  *   가운데 = 평면 지도(SINMAP 등급 · 안전율) · 범례
  *   우 = 요약(등급별 면적 · 위험 면적) · 측점별 위험 표(누름 = 지도 그 측점)
- *   계산 = 서버 단독(POST …/stab/area/analyze · 뒤에서) · 화면은 값 · 그림만. 조건 = sessionStorage.
+ *   계산 = 서버 단독(POST …/stab/area/analyze · 뒤에서) · 화면은 값 · 그림만. 조건 = sessionStorage
+ *   · 없으면 지난 결과 조건 + 물성은 지금 E02 값.
  * ========================================================================== */
 
 import "./E07_StabArea_UI_Style.css";
@@ -239,15 +240,10 @@ export function renderE07StabArea(root: HTMLElement): void {
   const analyzeButton = createButton({
     label: t("E07_Analyze"),
     variant: "filled",
-    onClick: () => void analyze(false),
-  });
-  const reanalyzeButton = createButton({
-    label: t("E07_Reanalyze"),
-    variant: "ghost",
-    onClick: () => void analyze(true),
+    onClick: () => void analyze(),
   });
   const actions = el("div", { className: "ui-sidebar-actions" });
-  actions.append(defaultsButton, reanalyzeButton, analyzeButton);
+  actions.append(defaultsButton, analyzeButton);
   const readOnly = note(t("E07_ReadOnly"), "e07-hint");
   readOnly.hidden = true;
   panel.append(
@@ -295,24 +291,31 @@ export function renderE07StabArea(root: HTMLElement): void {
     remember();
   });
   fields.get("band_m")!.input.addEventListener("input", paintScenario);
-  material.select.addEventListener("change", () => {
-    const m = overview?.materials.find((x) => x.id === material.select.value);
-    if (!m) return;
-    const set = (key: string, v: number) => (fields.get(key)!.input.value = String(v));
+  /** E02 물성 값(범위 위 = 기본값과 같은 폭) — 없는 id 면 빈 것 */
+  function materialValues(id: unknown): Settings {
+    const m = overview?.materials.find((x) => x.id === id);
+    if (!m) return {};
     const rangeC = Number(overview!.defaults.c_hi) - Number(overview!.defaults.c);
     const rangePhi = Number(overview!.defaults.phi_hi) - Number(overview!.defaults.phi);
-    set("gamma_t", m.gamma_t);
-    set("gamma_sat", m.gamma_sat);
-    set("c", m.c);
-    set("c_hi", m.c + rangeC);
-    set("phi", m.phi);
-    set("phi_hi", m.phi + rangePhi);
+    return {
+      gamma_t: m.gamma_t,
+      gamma_sat: m.gamma_sat,
+      c: m.c,
+      c_hi: m.c + rangeC,
+      phi: m.phi,
+      phi_hi: m.phi + rangePhi,
+    };
+  }
+
+  material.select.addEventListener("change", () => {
+    const values = materialValues(material.select.value);
+    for (const [key, v] of Object.entries(values)) fields.get(key)!.input.value = String(v);
     remember();
   });
 
   function paintButtons(): void {
     const editable = Boolean(overview?.editable);
-    analyzeButton.disabled = reanalyzeButton.disabled = !editable || running || !overview;
+    analyzeButton.disabled = !editable || running || !overview;
     readOnly.hidden = !overview || editable;
   }
 
@@ -445,11 +448,11 @@ export function renderE07StabArea(root: HTMLElement): void {
     }
   }
 
-  async function analyze(force: boolean): Promise<void> {
+  async function analyze(): Promise<void> {
     try {
       const body = await api<{ status: string }>(`/projects/${projectId}/stab/area/analyze`, {
         method: "POST",
-        body: JSON.stringify({ ...read(), force }),
+        body: JSON.stringify(read()),
       });
       if (body.status === "cached") {
         showToast(t("E07_Cached"), "info");
@@ -478,8 +481,12 @@ export function renderE07StabArea(root: HTMLElement): void {
     const cached = JSON.parse(
       sessionStorage.getItem(cacheKey(projectId)) ?? "null",
     ) as Settings | null;
-    // 옛 조건(빠진 칸 · 없어진 시나리오)은 기본값으로 채움
-    write({ ...ov.defaults, ...(cached ?? (ov.result?.settings as Settings | undefined)) });
+    // 옛 조건(빠진 칸 · 없어진 시나리오)은 기본값으로 채움 · 캐시가 없으면 물성 = 지금 E02 값
+    const last = ov.result?.settings as Settings | undefined;
+    write({
+      ...ov.defaults,
+      ...(cached ?? { ...last, ...materialValues(last?.material_id ?? ov.defaults.material_id) }),
+    });
     map.setRoute(ov.line, ov.stations);
     const p = await api<Progress>(`/projects/${projectId}/stab/area/progress`).catch(() => null);
     if (p?.running) void poll();
diff --git a/db_management/021_plan_base_json.sql b/db_management/021_plan_base_json.sql
new file mode 100644
index 000000000..af164e2e8
--- /dev/null
+++ b/db_management/021_plan_base_json.sql
@@ -0,0 +1,7 @@
+-- 021_plan_base_json.sql
+-- 예정노선 전체 시점 · 종점 두 점 (요구서 389 3장 1 · PLAN 560-2)
+-- {"epsg": int, "start": {"x", "y"}, "end": {"x", "y"}} · TM m · 비면 옛 연도 행을 접어 보임(D02 서버)
+
+USE aislo_db;
+
+ALTER TABLE projects ADD COLUMN IF NOT EXISTS plan_base_json JSON NULL COMMENT '예정노선 전체 시점 · 종점(D02)';
diff --git a/resources/tester/test_529_3_plan_points.py b/resources/tester/test_529_3_plan_points.py
index 7c65cf634..892df2b10 100644
--- a/resources/tester/test_529_3_plan_points.py
+++ b/resources/tester/test_529_3_plan_points.py
@@ -1,10 +1,13 @@
-"""D02 기준 지정(PLAN 529-3) — 경위도 ↔ TM 변환 · 지점 정본 API(잇기 · 빈 연도 · 권한).
+"""D02 기준 지정(PLAN 529-3 · 560-2) — 경위도 ↔ TM 변환 · 전체 두 점 정본 API · 옛 연도 행 접기
+· 연도 잇기(D03 [저장]이 씀).
 
 ./venv/Scripts/python.exe -m pytest resources/tester/test_529_3_plan_points.py -q
 """
 
+import json
+
 import pytest
-from fastapi import FastAPI
+from fastapi import FastAPI, HTTPException
 from fastapi.testclient import TestClient
 
 from common_util.common_util_auth import require_company
@@ -59,21 +62,16 @@ def api(monkeypatch):
         "project": {"project_kind": "PLAN", "project_year": 2026, "project_year_end": 2027},
         "rows": {},
         "session": {"role": "USER", "email": "kim@forest.go.kr", "company_id": 1},
-        "stores": [],
     }
 
     async def load(project_id):
         return state["project"], {y: dict(r) for y, r in state["rows"].items()}
 
-    async def store(project_id, epsg, writes, drops):
-        state["stores"].append((epsg, writes, drops))
-        for row in writes:
-            state["rows"][row["year"]] = {**row, "epsg": epsg}
-        for year in drops:
-            state["rows"].pop(year)
+    async def store_base(project_id, base):
+        state["project"] = {**state["project"], "plan_base_json": json.dumps(base)}
 
     monkeypatch.setattr(router_mod, "_load", load)
-    monkeypatch.setattr(router_mod, "_store", store)
+    monkeypatch.setattr(router_mod, "_store_base", store_base)
     app = FastAPI()
     app.include_router(router_mod.router)
     app.dependency_overrides[require_company] = lambda: state["session"]
@@ -82,68 +80,58 @@ def api(monkeypatch):
     return client
 
 
-def test_put_chains_years(api) -> None:
-    # 2027 시점을 엉뚱하게 보내도 서버가 2026 종점으로 맞춤
-    body = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2027, "start": A, "end": C}]}
-    got = api.put(URL, json=body)
+def test_put_two_points(api) -> None:
+    got = api.put(URL, json={"start": A, "end": C})
     assert got.status_code == 200
     data = got.json()
-    assert data["epsg"] == 5186 and data["changed_years"] == [2026, 2027]
-    y26, y27 = data["years"]
-    assert y27["start"]["x"] == y26["end"]["x"] and y27["start"]["y"] == y26["end"]["y"]
-    assert abs(y27["start"]["lon"] - B["lon"]) < 1e-8 and abs(y27["start"]["lat"] - B["lat"]) < 1e-8
-    assert (y26["start"]["x"], y26["start"]["y"]) == pytest.approx(
+    assert data["epsg"] == 5186
+    assert (data["start"]["x"], data["start"]["y"]) == pytest.approx(
         lonlat_to_tm(127.10, 37.50, 5186)
     )
+    assert abs(data["end"]["lon"] - C["lon"]) < 1e-8 and abs(data["end"]["lat"] - C["lat"]) < 1e-8
+    stored = json.loads(api.state["project"]["plan_base_json"])
+    assert set(stored) == {"epsg", "start", "end"} and set(stored["start"]) == {"x", "y"}
+    assert api.state["rows"] == {}  # 연도 행은 D02 가 안 만듦
 
 
-def test_put_rejects_empty_and_out_of_range(api) -> None:
-    only_first = {"years": [{"year": 2026, "start": A, "end": B}]}
-    got = api.put(URL, json=only_first)
-    assert got.status_code == 400 and "2027년 종점" in got.json()["detail"]
-    no_start = {"years": [{"year": 2026, "end": B}, {"year": 2027, "end": C}]}
-    assert "2026년 시점" in api.put(URL, json=no_start).json()["detail"]
-    outside = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2028, "end": C}]}
-    assert api.put(URL, json=outside).status_code == 400
-    assert api.state["stores"] == []
+def test_put_one_point_and_empty(api) -> None:
+    data = api.put(URL, json={"start": A}).json()
+    assert data["start"] and data["end"] is None and data["epsg"] == 5186
+    data = api.put(URL, json={}).json()
+    assert data == {"status": "success", "epsg": None, "start": None, "end": None}
 
 
 def test_put_forest_only(api) -> None:
-    body = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2027, "end": C}]}
     api.state["session"] = {"role": "USER", "email": "lee@company.com", "company_id": 1}
-    assert api.put(URL, json=body).status_code == 403
+    assert api.put(URL, json={"start": A, "end": B}).status_code == 403
     api.state["session"] = {"role": "SYSTEM_ADMIN", "email": "admin@x.com", "company_id": None}
-    assert api.put(URL, json=body).status_code == 200
+    assert api.put(URL, json={"start": A, "end": B}).status_code == 200
 
 
-def test_put_clears_only_changed_years(api) -> None:
-    body = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2027, "end": C}]}
-    api.put(URL, json=body)
-    # 같은 지점 다시 저장 = 쓰기 없음(분석 노선 그대로) · 2027 종점만 옮기면 2027 만
-    assert api.put(URL, json=body).json()["changed_years"] == []
-    moved = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2027, "end": A}]}
-    assert api.put(URL, json=moved).json()["changed_years"] == [2027]
-    assert len(api.state["stores"]) == 2
-
-
-def test_get_lists_every_year_and_drops_outside(api) -> None:
-    api.state["rows"][2030] = {
-        "year": 2030,
-        "start_x": 1,
-        "start_y": 1,
-        "end_x": 2,
-        "end_y": 2,
-        "epsg": 5186,
-    }
+def test_get_folds_old_year_rows(api) -> None:
+    epsg = 5186
+    a, b, c = (lonlat_to_tm(p["lon"], p["lat"], epsg) for p in (A, B, C))
+    for year, s, e in ((2026, a, b), (2027, b, c)):
+        api.state["rows"][year] = {
+            "year": year,
+            **{"start_x": s[0], "start_y": s[1], "end_x": e[0], "end_y": e[1]},
+            "epsg": epsg,
+        }
     data = api.get(URL).json()
-    assert [y["year"] for y in data["years"]] == [2026, 2027]
-    assert data["years"][0]["start"] is None
-    body = {"years": [{"year": 2026, "start": A, "end": B}, {"year": 2027, "end": C}]}
-    api.put(URL, json=body)
-    assert api.state["stores"][-1][2] == [2030] and 2030 not in api.state["rows"]
+    assert data["epsg"] == epsg
+    assert (data["start"]["x"], data["end"]["x"]) == pytest.approx((a[0], c[0]))
 
 
-def test_not_plan_project(api) -> None:
-    api.state["project"] = {"project_kind": "ROAD", "project_year": 2026, "project_year_end": None}
-    # _load 대역이 그대로 돌려주므로 진짜 _load 의 거절은 서버 시험(ORCA)에서
-    assert api.get(URL).status_code == 200
+def test_get_empty_new_project(api) -> None:
+    assert api.get(URL).json() == {"status": "success", "epsg": None, "start": None, "end": None}
+
+
+def test_chain_years_for_d03() -> None:
+    items = [
+        router_mod.YearPoints(year=2026, start=A, end=B),
+        router_mod.YearPoints(year=2027, start=A, end=C),
+    ]
+    rows = router_mod.chain_years(2026, 2027, items)
+    assert rows[1]["start"].lon == B["lon"]  # 시점 = 직전 종점
+    with pytest.raises(HTTPException):
+        router_mod.chain_years(2026, 2027, items[:1])
diff --git a/resources/tester/test_532_3_e03_section.py b/resources/tester/test_532_3_e03_section.py
index 17d0cd9cd..4e051d996 100644
--- a/resources/tester/test_532_3_e03_section.py
+++ b/resources/tester/test_532_3_e03_section.py
@@ -271,6 +271,39 @@ def test_노선면_솎음(project):
         assert max(abs(v) for v in ribbon["positions"]) < 5000  # 원점 뺀 자리
 
 
+def test_노선면_설계_지형(project):
+    """지형 = E04 Grid 꼴 · 리본과 같은 원점 · 노면 발자국 안 = None · 노면 옆 표고 ≈ 비탈 끝."""
+    body = asyncio.run(router.corridor3d(UUID(PID)))
+    terrain = body["terrain"]
+    g, z = terrain["grid"], terrain["z"]
+    assert len(z) == g["nx"] * g["ny"] and g["dx"] >= router.TERRAIN_STEP_M
+    assert g["nx"] * g["ny"] <= router.TERRAIN_MAX_CELLS * 1.05
+    have = [v for v in z if v is not None]
+    assert have and max(abs(v) for v in have) < 500  # 원점 표고 뺀 값
+
+    def cell(x, y):
+        ix = round((x - g["x0"]) / g["dx"])
+        iy = round((y - g["y0"]) / g["dx"])
+        return z[iy * g["nx"] + ix]
+
+    # 노면 리본 가운데 열 = 발자국 안 → 구멍
+    road = next(r for r in body["ribbons"] if r["colCount"] >= 3)
+    cols = road["colCount"]
+    mid = [
+        road["positions"][(i * cols + cols // 2) * 3 : (i * cols + cols // 2) * 3 + 2]
+        for i in range(len(road["chainages"]))
+    ]
+    holes = [cell(*p) is None for p in mid]
+    assert sum(holes) / len(holes) > 0.9
+    # 지형 있는 칸의 원래 표고 = DTM 표본 − 원점 표고
+    sampler = router.DtmGridSampler.from_npz(src.terrain_grid_path(src.source_dir(project)))
+    i = next(k for k, v in enumerate(z) if v is not None)
+    x = g["x0"] + (i % g["nx"]) * g["dx"] + body["origin"][0]
+    y = g["y0"] + (i // g["nx"]) * g["dx"] + body["origin"][1]
+    want, ok = sampler.sample_xy([[x, y]])
+    assert ok[0] and z[i] == pytest.approx(want[0] - body["origin"][2], abs=0.02)
+
+
 class _Cursor:
     def __init__(self, rows):
         self.rows = rows
diff --git a/resources/tester/test_536_2_e07_area.py b/resources/tester/test_536_2_e07_area.py
index 6bfe08965..d35050163 100644
--- a/resources/tester/test_536_2_e07_area.py
+++ b/resources/tester/test_536_2_e07_area.py
@@ -266,3 +266,15 @@ def test_길_띠_측점표_저장본(project):
         "s", {**settings, "c": 6}
     )
     json.dumps(doc)  # 그대로 JSON
+
+
+def test_지문_E02_물성_엔진_해시(project, monkeypatch):
+    """광역 물성 = E02 값 — E02 붕적토가 바뀌거나 엔진 파일이 바뀌면 지문이 달라 옛 결과."""
+    settings = router_mod.defaults(project)
+    ground = router_mod.ground_material(project, settings["material_id"])
+    assert ground["id"] == "colluvium" and ground["c"] == settings["c"]
+    assert router_mod.ground_material(project, "없는것") == ground  # 모르는 id = 붕적토
+    before = router_mod.fingerprint("s", settings, ground)
+    assert before != router_mod.fingerprint("s", settings, {**ground, "c": ground["c"] + 1})
+    monkeypatch.setattr(router_mod, "engine_hash", lambda: "바뀜")
+    assert before != router_mod.fingerprint("s", settings, ground)
diff --git a/ui_template/ui_template_locale_de.ts b/ui_template/ui_template_locale_de.ts
index 7e510a954..7442a766c 100644
--- a/ui_template/ui_template_locale_de.ts
+++ b/ui_template/ui_template_locale_de.ts
@@ -118,10 +118,10 @@ export const ui_locales_de = {
   DE_Link_NoRoad: ["우리 회사 임도 프로젝트가 없습니다.", "No road project in our company."],
 
   /* --- D02 기준 지정(529-3) --- */
-  D02_Points_Title: ["연도 지점", "Yearly Points"],
+  D02_Points_Title: ["전체 시점 · 종점", "Overall Start · End"],
   D02_Points_Hint: [
-    "📍 로 고른 지점을 지도 누름으로 놓고 · 표지를 끌거나 경도 · 위도를 넣습니다. 직전 종점 = 다음 시점.",
-    "Pick a point with 📍 and click the map, drag markers, or type lon · lat. Each end is the next start.",
+    "📍 로 고른 지점을 지도 누름으로 놓고 · 표지를 끌거나 경도 · 위도를 넣습니다. 연도 나누기는 노선분석에서.",
+    "Pick a point with 📍 and click the map, drag markers, or type lon · lat. Split by year in analysis.",
   ],
   D02_Start: ["시점", "start"],
   D02_End: ["종점", "end"],
diff --git a/ui_template/ui_template_locale_e03.ts b/ui_template/ui_template_locale_e03.ts
index 29befffc6..48138007e 100644
--- a/ui_template/ui_template_locale_e03.ts
+++ b/ui_template/ui_template_locale_e03.ts
@@ -25,6 +25,7 @@ export const ui_locales_e03 = {
   E03_Fresh: ["입력이 같아 다시 셀 것이 없습니다.", "Inputs unchanged — nothing to recompute."],
   E03_View3d: ["3D 보기", "3D View"],
   E03_View3d_Legend: ["최소 안전율 ÷ 기준안전율", "Min FS ÷ required FS"],
+  E03_View3d_Terrain: ["설계 지형", "Design terrain"],
   E03_Loading: ["불러오는 중…", "Loading…"],
   E03_NotYet: [
     "아직 해석하지 않았습니다 — [해석]을 누르세요.",
diff --git a/ui_template/ui_template_locale_e06.ts b/ui_template/ui_template_locale_e06.ts
index 83273a815..8888b1d95 100644
--- a/ui_template/ui_template_locale_e06.ts
+++ b/ui_template/ui_template_locale_e06.ts
@@ -10,8 +10,8 @@ import type { LocaleEntry } from "./ui_template_locale_common";
 export const ui_locales_e06 = {
   /* --- E06 좌측 --- */
   E06_Note: [
-    "암 측점(리핑암 · 발파암) 깎기 비탈만 봅니다. 절리군을 넣고 [저장] → [해석]. 사면 방향 · 경사 · 높이는 복사본 횡단, 물성 · 지진 · 기준안전율은 지반 조건(E02)을 씁니다.",
-    "Only cut slopes at rock stations (rippable · blasting rock). Enter joint sets, [Save] → [Analyze]. Slope orientation, angle and height come from the copied sections; strength, seismic and required FS from Ground (E02).",
+    "암 측점(리핑암 · 발파암) 깎기 비탈만 봅니다. 절리군을 넣고 [해석](넣은 값 저장 + 해석). 사면 방향 · 경사 · 높이는 복사본 횡단, 물성 · 지진 · 기준안전율은 지반 조건(E02)을 씁니다.",
+    "Only cut slopes at rock stations (rippable · blasting rock). Enter joint sets, then [Analyze] (saves and analyzes). Slope orientation, angle and height come from the copied sections; strength, seismic and required FS from Ground (E02).",
   ],
   E06_Card_Joints: ["절리군", "Joint sets"],
   E06_JointsHint: [
@@ -61,8 +61,10 @@ export const ui_locales_e06 = {
   E06_Running: ["해석 중…", "Analyzing…"],
   E06_Done: ["암반 해석을 마쳤습니다.", "Rock analysis done."],
   E06_Fresh: ["입력이 같아 지난 결과를 씁니다.", "Inputs unchanged — previous result kept."],
-  E06_Saved: ["저장했습니다.", "Saved."],
-  E06_Unsaved: ["저장 안 된 변경이 있습니다.", "There are unsaved changes."],
+  E06_Unsaved: [
+    "저장 안 됨(해석 전) — [해석]을 누르면 저장됩니다.",
+    "Not saved (before analysis) — [Analyze] saves.",
+  ],
   E06_ReadOnly: ["보기만 허용된 프로젝트입니다.", "This project is view-only."],
   E06_Invalid: ["틀린 칸", "Invalid fields"],
   E06_Err_Range: ["범위 밖", "Out of range"],
diff --git a/ui_template/ui_template_locale_e07.ts b/ui_template/ui_template_locale_e07.ts
index a405ebc12..577d387d2 100644
--- a/ui_template/ui_template_locale_e07.ts
+++ b/ui_template/ui_template_locale_e07.ts
@@ -44,7 +44,6 @@ export const ui_locales_e07 = {
   E07_LevelHi: ["측점 높음 문턱 (SI<1 비율 %)", "Station high threshold (SI<1 share %)"],
   E07_Defaults: ["기본값", "Defaults"],
   E07_Analyze: ["해석", "Analyze"],
-  E07_Reanalyze: ["다시 해석", "Re-analyze"],
   E07_Running: ["해석 중", "Analyzing"],
   E07_Done: ["광역 해석을 마쳤습니다.", "Area analysis finished."],
   E07_Cached: ["같은 조건의 결과가 있습니다.", "A result with the same inputs exists."],
@@ -67,8 +66,8 @@ export const ui_locales_e07 = {
   E07_Result_Title: ["광역 결과", "Area result"],
   E07_Result_None: ["아직 해석 결과가 없습니다.", "No result yet."],
   E07_Result_Stale: [
-    "엔진이 바뀌어 결과가 옛것입니다 — [다시 해석].",
-    "The engine changed — re-analyze.",
+    "입력(E02 물성 · 엔진)이 바뀌어 결과가 옛것입니다 — [해석]을 누르세요.",
+    "Inputs (E02 soil · engine) changed — press [Analyze].",
   ],
   E07_Result_Note: [
     "문헌 추정치 · 현장 시험 없음 · 기본값은 바꿀 수 있음. 표준 = 포화비 W = min(R·a / (T·sinθ), 1). SI = c · φ · T/R 범위 안에서 Fs > 1 일 확률(하한 Fs ≥ 1 이면 그 값 · 상한 Fs < 1 이면 0). Fs = 가장 나쁜 쪽(c · φ 아래 · 가장 젖음). 지형 격자 끝 밖 상류는 집수면적에 안 들어갑니다.",