diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Cross.ts b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Cross.ts
index 00571394c..2f2c41eee 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Cross.ts
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Cross.ts
@@ -1,10 +1,12 @@
 /* =============================================================================
  * D03_PlanAnalysis_UI_Cross.ts
- * D03 하 패널 — 누른 측점의 지반선 횡단(PLAN 530-3). 계산 = 화면 TS 즉시(① 짝 `sectionsGround` ↔
- *   `generate_sections` · 격자 = 그 연도 DEM 평활본) · 그림 = B05 `buildCrossSvg` 지반만.
+ * D03 하 패널 — 누른 측점의 지반선 + 예상 횡단(PLAN 530-3 · 544-2). 계산 = 화면 TS 즉시(① 짝 `sectionsGround` ↔
+ *   `generate_sections` · 격자 = 그 연도 DEM 평활본) · 예상 = `logic/D03_PlanAnalysis_Expect`(표준 횡단 기본값 ·
+ *   계획고 = 중심 지반고 · 표준값 = `sections/context` 세션 캐시) · 그림 = B05 `buildCrossSvg`.
  * ========================================================================== */
 
 import "../B05_Profile/B05_Profile_UI_Style_RouteEdit.css";
+import { CURRENT_PROJECT_ID_KEY } from "@config/config_frontend";
 import { createWorkflowPanelHandle } from "@ui/ui_template_overlay";
 import { stationLabel } from "../common_util/common_util_station";
 import type { DtmGrid } from "../common_util/common_util_surface_sampler";
@@ -13,7 +15,9 @@ import {
   sectionsGround,
   type StationGround,
 } from "../B05_Profile/logic/B05_Profile_Sections_Ground";
+import { fetchSectionContext } from "../B06_Section/B06_Section_Api_Context";
 import type { Vertex } from "./logic/D03_PlanAnalysis_Plan";
+import { expectCross, type ExpectStandard } from "./logic/D03_PlanAnalysis_Expect";
 import { PLAN_STATION_INTERVAL_M } from "./D03_PlanAnalysis_UI_Map";
 
 export interface PlanCross {
@@ -29,6 +33,17 @@ export interface PlanCross {
   clear: (text: string) => void;
 }
 
+/** 표준 횡단 기본값(config · 서버 한 번 · 세션 캐시) — 못 받으면 null(지반선만). */
+export function loadExpectStandard(projectId: string): Promise<ExpectStandard | null> {
+  return fetchSectionContext(projectId).then(
+    (context) => ({
+      standard: context.standard_cross_section as ExpectStandard["standard"],
+      rockBoundaryM: context.rock_boundary_default_offset_m,
+    }),
+    () => null,
+  );
+}
+
 export function createPlanCross(): PlanCross {
   const root = document.createElement("section");
   root.className = "d03-plan__cross";
@@ -51,7 +66,9 @@ export function createPlanCross(): PlanCross {
     body.replaceChildren(Object.assign(document.createElement("p"), { textContent: text }));
     delete root.dataset.chainage;
   };
-  clear("평면에서 측점을 누르면 그 자리 지반선 횡단이 보입니다.");
+  clear("평면에서 측점을 누르면 그 자리 지반선 · 예상 횡단이 보입니다.");
+  let standard: ExpectStandard | null = null;
+  let asked: Promise<ExpectStandard | null> | null = null;
 
   return {
     root,
@@ -64,26 +81,42 @@ export function createPlanCross(): PlanCross {
       }
       const name = stationLabel(chainage, PLAN_STATION_INTERVAL_M, 1);
       const z = station.center_z === null ? "—" : `${station.center_z.toFixed(2)} m`;
-      head.textContent = `${year}년 · ${name} · 중심 지반고 ${z}`;
       root.dataset.chainage = String(chainage);
-      const rect = body.getBoundingClientRect();
-      const plot = buildCrossSvg(
-        {
-          status: "success",
-          chainage_m: chainage,
-          label: name,
-          uphill_side: station.uphill_side,
-          plan_radius_m: null,
-          curve_widening_m: null,
-          cross_half_width_m: 20,
-          samples: station.samples,
-          design: null,
-        },
-        Math.max(rect.width, 320),
-        Math.max(rect.height, 160),
-        true,
-      );
-      body.replaceChildren(plot.svg);
+      const draw = (): void => {
+        const expect = standard ? expectCross(station, standard, grid) : null;
+        const area = expect
+          ? ` · 예상(표준 횡단 기본값 · 계획고 = 지반고) 절토 ${expect.design.cut_area_m2.toFixed(2)}㎡ · 성토 ${expect.design.fill_area_m2.toFixed(2)}㎡`
+          : "";
+        head.textContent = `${year}년 · ${name} · 중심 지반고 ${z}${area}`;
+        const rect = body.getBoundingClientRect();
+        const plot = buildCrossSvg(
+          {
+            status: "success",
+            chainage_m: chainage,
+            label: name,
+            uphill_side: station.uphill_side,
+            plan_radius_m: null,
+            curve_widening_m: null,
+            cross_half_width_m: 20,
+            samples: expect?.samples ?? station.samples,
+            design: expect ? { ...expect.design } : null,
+          },
+          Math.max(rect.width, 320),
+          Math.max(rect.height, 160),
+          !expect,
+        );
+        body.replaceChildren(plot.svg);
+      };
+      draw();
+      if (!standard) {
+        const projectId = localStorage.getItem(CURRENT_PROJECT_ID_KEY) ?? "";
+        asked ??= loadExpectStandard(projectId);
+        void asked.then((value) => {
+          standard = value;
+          // 그사이 다른 측점을 눌렀으면 그 측점이 다시 그림
+          if (value && root.dataset.chainage === String(chainage)) draw();
+        });
+      }
       return station;
     },
   };