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@kurtraschke
kurtraschke / gist:1390328
Created November 24, 2011 00:18
WMATA bus API says there are no buses...
Kurt-Raschke:~ kurt$ curl http://api.wmata.com/Bus.svc/json/JBusPositions?api_key=redacted
{"BusPositions":[]}
{
"Routes": [
{
"Name": "10:00:00 AM - 10A HUNT TOWERS-PENT ",
"RouteID": "10A"
},
{
"Name": "10:00:00 AM - 10A HUNT TOWERS-PENT ",
"RouteID": "10Av1"
},
@kurtraschke
kurtraschke / area.py
Created December 17, 2012 23:18
Find bounding box and convex hull of agency coverage (as WKT) for a OneBusAway TDS.
from mustaine.client import HessianProxy
from shapely.geometry import box
from shapely.ops import cascaded_union
service = HessianProxy("http://172.16.2.32:8080/onebusaway-transit-data-federation-webapp/remoting/transit-data-service")
agencies = service.getAgenciesWithCoverage()
boxes = []

This Gist contains a script and supporting files for building a OneBusAway GTFS bundle with data for all agencies in the Baltimore/Washington area that have publicly released their data.

Configuration parameters come from two sheets in a Google Docs document:

https://docs.google.com/spreadsheet/ccc?key=0AvrkbWHnoksNdGdYam4wX214SXpoRmdia0FEalZvUHc&usp=sharing

The dependency on Google Docs could easily be removed by removing that part of download.sh and using a locally-maintained CSV file instead.

Recently (as in, over the past few months) the WMATA BusPosition feed has been behaving anomalously.
There are three observed problems:
1. The feed doesn't include the entire fleet - during the weekday rush hour we'd expect to see close to 900 buses, but this morning the feed returned fewer than 250 vehicles.
2. Bus positions return the wrong trip, or are lagging badly. Look at this example:
<BusPosition>
<DateTime>2013-08-16T07:32:01</DateTime>
@kurtraschke
kurtraschke / cap.xjb
Created November 11, 2013 01:47
JAXB bindings file for CAP schema to produce enums from anonymous types.
<?xml version="1.0" encoding="UTF-8"?>
<jaxb:bindings xmlns:jaxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
jaxb:version="1.0">
<jaxb:bindings schemaLocation="CAP-v1.2.xsd" node="/xsd:schema">
<jaxb:bindings node="//xsd:element[@name='status']">
<jaxb:bindings node="./xsd:simpleType">
<jaxb:typesafeEnumClass name="StatusType" />
{
"currentTime": 1391381290937,
"text": "OK",
"data": {
"instanceDetails": [
{
"contactEmail": "onebusaway@kurt-p7-1539",
"instanceName": "OneBusAway on kurt-p7-1539",
"twitterUrl": "",
"language": "en-US",
@kurtraschke
kurtraschke / README.md
Last active August 29, 2015 14:00
GTFS-realtime test harness for frequency-based trips

GTFS-realtime test harness for frequency-based trips

Introduction

This is a Python-based test harness which can be used to simulate a GTFS-realtime feed with trips on a frequency-based route. Specifically, it simulates arrivals on the AirBART route (obtain BART GTFS here), at the AirBART_OAK stop. For convenience, the script simulates two vehicles, which are perpetually three and seven minutes away, respectively.

Setup

Sort sort = new Sort(_spatialStrategy.makeDistanceValueSource(shape.getCenter()).getSortField(false)).rewrite(_searcher);
Tue Jun 30 19:59:55 2015 :$GPZDA,235955.00,30,06,2015,00,00*68
Tue Jun 30 19:59:56 2015 :$GPZDA,235956.00,30,06,2015,00,00*6B
Tue Jun 30 19:59:57 2015 :$GPZDA,235957.00,30,06,2015,00,00*6A
Tue Jun 30 19:59:58 2015 :$GPZDA,235958.00,30,06,2015,00,00*65
Tue Jun 30 19:59:59 2015 :$GPZDA,235959.00,30,06,2015,00,00*64
Tue Jun 30 19:59:59 2015 :$GPZDA,235960.00,30,06,2015,00,00*6E
Tue Jun 30 20:00:00 2015 :$GPZDA,000000.00,01,07,2015,00,00*66
Tue Jun 30 20:00:01 2015 :$GPZDA,000001.00,01,07,2015,00,00*67
Tue Jun 30 20:00:02 2015 :$GPZDA,000002.00,01,07,2015,00,00*64
Tue Jun 30 20:00:03 2015 :$GPZDA,000003.00,01,07,2015,00,00*65