diff --git a/backend/src/lib.rs b/backend/src/lib.rs
index 87048f7..795ba27 100644
--- a/backend/src/lib.rs
+++ b/backend/src/lib.rs
@@ -5,6 +5,7 @@ extern crate log;
 
 use std::collections::HashSet;
 use std::sync::Once;
+use std::time::Duration;
 
 use chrono::NaiveTime;
 use geo::Coord;
@@ -158,8 +159,14 @@ impl MapModel {
     ) -> Result<String, JsValue> {
         let req: ScoreRequest = serde_wasm_bindgen::from_value(input)?;
         let poi_kinds: HashSet<String> = req.poi_kinds.into_iter().collect();
-        score::calculate(&self.graph, poi_kinds, Timer::new("score", progress_cb))
-            .map_err(err_to_js)
+        let limit = Duration::from_secs(req.max_seconds);
+        score::calculate(
+            &self.graph,
+            poi_kinds,
+            limit,
+            Timer::new("score", progress_cb),
+        )
+        .map_err(err_to_js)
     }
 }
 
@@ -188,6 +195,7 @@ pub struct RouteRequest {
 #[derive(Deserialize)]
 pub struct ScoreRequest {
     poi_kinds: Vec<String>,
+    max_seconds: u64,
 }
 
 fn err_to_js<E: std::fmt::Display>(err: E) -> JsValue {
diff --git a/backend/src/score.rs b/backend/src/score.rs
index fb0c0ff..ef70af3 100644
--- a/backend/src/score.rs
+++ b/backend/src/score.rs
@@ -9,8 +9,12 @@ use crate::timer::Timer;
 
 // Return GeoJSON points for each POI, with info about that POI, a score to the nearest cycle
 // parking, and the location of that parking
-pub fn calculate(graph: &Graph, poi_kinds: HashSet<String>, mut timer: Timer) -> Result<String> {
-    let limit = Duration::from_secs(10 * 60);
+pub fn calculate(
+    graph: &Graph,
+    poi_kinds: HashSet<String>,
+    limit: Duration,
+    mut timer: Timer,
+) -> Result<String> {
     // Exact time doesn't matter
     let start_time = NaiveTime::from_hms_opt(7, 0, 0).unwrap();
     let end_time = start_time + limit;
diff --git a/web/src/ScoreMode.svelte b/web/src/ScoreMode.svelte
index 4d65c27..5624f97 100644
--- a/web/src/ScoreMode.svelte
+++ b/web/src/ScoreMode.svelte
@@ -16,18 +16,20 @@
   import { makeColorRamp } from "svelte-utils/map";
 
   let loading: string[] = [];
+  let maxSeconds = 600;
   let poiKinds: string[] = [];
   let showParking = true;
 
   let gj: FeatureCollection<Point, ScoreProps> | null = null;
 
-  $: updateScores(poiKinds);
+  $: updateScores(poiKinds, maxSeconds);
 
-  async function updateScores(_x: string[]) {
+  async function updateScores(_x: string[], _y: number) {
     loading = [...loading, "Calculating scores"];
     gj = await $backend!.score(
       {
         poiKinds,
+        maxSeconds,
       },
       Comlink.proxy(progressCb),
     );
@@ -39,8 +41,8 @@
 
   let routeGj: FeatureCollection | null = null;
 
-  let limits = Array.from(Array(6).keys()).map(
-    (i) => ((60 * 10) / (6 - 1)) * i,
+  $: limits = Array.from(Array(6).keys()).map(
+    (i) => (maxSeconds / (6 - 1)) * i,
   );
 
   let hoveredAmenity: Feature<Point, ScoreProps> | null;
@@ -94,6 +96,11 @@
 
     <SequentialLegend {colorScale} {limits} />
 
+    <label>
+      <input type="number" bind:value={maxSeconds} />
+      Max time (seconds)
+    </label>
+
     <label>
       <input type="checkbox" bind:checked={showParking} />
       Show parking
@@ -101,12 +108,11 @@
 
     <p>
       This is an early experiment of a mode to show an "access score". Right
-      now, it's starting from every POI based on the types chosen below and
-      walking up to 10 minutes to the nearest bicycle parking. This is a simple
-      way of showing POIs without any nearby parking. Note the granularity of
-      results is poor; the search begins and ends at the nearest intersection,
-      and the time to walk doesn't take into account the side of the road or
-      walking partly down some road.
+      now, it's starting from every POI chosen and walking up to some time to
+      the nearest bicycle parking. This is a simple way of showing POIs without
+      any nearby parking. Note the granularity of results is poor; the search
+      begins and ends at the nearest intersection, and the time to walk doesn't
+      take into account the side of the road or walking partly down some road.
     </p>
     <p>
       Parking icon from <a
diff --git a/web/src/worker.ts b/web/src/worker.ts
index 173c555..443b739 100644
--- a/web/src/worker.ts
+++ b/web/src/worker.ts
@@ -120,6 +120,7 @@ export class Backend {
   score(
     req: {
       poiKinds: string[];
+      maxSeconds: number;
     },
     progressCb: (msg: string) => void,
   ): FeatureCollection<Point, ScoreProps> {
@@ -131,6 +132,7 @@ export class Backend {
       this.inner.score(
         {
           poi_kinds: req.poiKinds,
+          max_seconds: req.maxSeconds,
         },
         progressCb,
       ),