Added support for Mattapan Line (#130) (#254)

* Added support for Mattapan Line (#130)

* Add "Mattapan" to stats

* Added transithistory stats

* Update Red Line Stats and Mattapan Lambda

Author: ankoure

public/static_data.json

@@ -6,10 +6,10 @@
         "totalNewUndelivered": 10
     },
     "Red": {
-        "totalOldActive": 162,
-        "totalOldInactive": 2,
-        "totalNewDelivered": 38,
-        "totalNewUndelivered": 214
+        "totalOldActive": 156,
+        "totalOldInactive": 4,
+        "totalNewDelivered": 42,
+        "totalNewUndelivered": 210
     },
     "Green": {
         "totalOldActive": 165,
@@ -23,8 +23,12 @@
         "totalActive": 94,
         "totalInactive": 0
     },
+    "Mattapan": {
+        "totalActive": 6,
+        "totalInactive": 4
+    },
     "Sources": {
         "fleet_numbers": "http://roster.transithistory.org/"
     },
-    "Updated": "2025-07-11"
+    "Updated": "2025-08-17"
 }

server/chalicelib/fleet.py

@@ -15,6 +15,7 @@
 orange_is_new = lambda x: int(x) >= 1400 and int(x) <= 1551
 silver_is_new = lambda x: int(x) >= 1294 and int(x) <= 1299
 blue_is_new = lambda _: False
+mattapan_is_new = lambda x: False
 
 
 def get_route_test_function_dict(route_ids, test_fn):
@@ -28,6 +29,7 @@ def get_route_test_function_dict(route_ids, test_fn):
     **get_route_test_function_dict(GREEN_ROUTE_IDS, green_is_new),
     **get_route_test_function_dict(SILVER_ROUTE_IDS, silver_is_new),
     "Blue": blue_is_new,
+    "Mattapan": mattapan_is_new,
 }
 
 

src/components/App.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useLayoutEffect } from 'react';
 import Favicon from 'react-favicon';
 
-import { greenLine, orangeLine, redLine, blueLine } from '../lines';
+import { greenLine, orangeLine, redLine, blueLine, mattapanLine } from '../lines';
 import { useMbtaApi } from '../hooks/useMbtaApi';
 
 import { Line } from './Line';
@@ -24,6 +24,7 @@ const lineByTabId: Record<LineName, TLine> = {
     Orange: orangeLine,
     Red: redLine,
     Blue: blueLine,
+    Mattapan: mattapanLine,
 };
 
 export const App: React.FC = () => {

src/lines.ts

@@ -275,3 +275,29 @@ export const blueLine: Line = {
         },
     },
 };
+
+const enum MattapanStations {
+    Ashmont = 'place-asmnl',
+    Mattapan = 'place-matt',
+}
+
+export const mattapanLine: Line = {
+    name: 'Mattapan',
+    abbreviation: 'MT',
+    color: '#E37C7C',
+    colorSecondary: '#D13434',
+    getStationLabelPosition: () => 'right',
+    fixedTrainLabelPosition: 'right',
+    routes: {
+        Mattapan: {
+            shape: [
+                start(0, 0, 90),
+                stationRange({
+                    start: MattapanStations.Ashmont,
+                    end: MattapanStations.Mattapan,
+                    commands: [line(150)],
+                }),
+            ],
+        },
+    },
+};

src/types.ts

@@ -1,4 +1,4 @@
-export type LineName = 'Green' | 'Red' | 'Orange' | 'Blue';
+export type LineName = 'Green' | 'Red' | 'Orange' | 'Blue' | 'Mattapan';
 
 export interface Line {
     name: LineName;