Thru-Routes

[mattwigway]

Some trips have through-routes, so they break some assumptions we make. For now, trips like this are being discarded.

Here's an example (some tags omitted for brevity):

<itinerary id="3" viaRoute="MAX">
<time-distance>
<fare>
<leg id="3.1" xsi:type="ns:WalkingLegType" order="start" mode="Walk" xmlns:ns="http://maps.trimet.org/maps/model/xml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<leg id="3.2" mode="Light Rail" xsi:type="ns:TransitLegType" order="start" xmlns:ns="http://maps.trimet.org/maps/model/xml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<time-distance>
<lineURL param="9066,A,10:21 PM,11509,10:37 PM,11498">
<from areaKey="PO" areaValue="Portland" xsi:type="ns:StopPointType">
<to areaKey="PO" areaValue="Portland" xsi:type="ns:StopPointType">
<pos>
<description>Expo Center MAX Station</description>
<stopId>11498</stopId>
<stopSequence>18</stopSequence>
</to>
<route>
<number>MAX</number>
<internalNumber>190</internalNumber>
<name>MAX Yellow Line to Expo Center</name>
<key>A</key>
<direction>out</direction>
<block>9066</block>
<provider>TRIMET</provider>
</route>
<fare>
</leg>
<leg id="3.3" mode="Light Rail" xsi:type="ns:TransitLegType" order="thru-route" xmlns:ns="http://maps.trimet.org/maps/model/xml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<time-distance>
<lineURL param="9066,A,10:47 PM,11498,11:16 PM,7646">
<from areaKey="PO" areaValue="Portland" xsi:type="ns:StopPointType">
<pos>
<description>Expo Center MAX Station</description>
<stopId>11498</stopId>
<stopSequence>0</stopSequence>
</from>
<to areaKey="PO" areaValue="Portland" xsi:type="ns:StopPointType">
<route>
<number>MAX</number>
<internalNumber>190</internalNumber>
<name>MAX Yellow Line to City Center/PSU</name>
<key>A</key>
<direction>in</direction>
<block>9066</block>
</route>
</leg>
<leg id="3.4" mode="Walk" xsi:type="ns:WalkingLegType" order="end" xmlns:ns="http://maps.trimet.org/maps/model/xml" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
</itinerary>

[mattwigway]

I think this goes hand-in-hand with #44 (Transfers); I'm assigning it to 'Future'

[mattwigway]

Thruroutes are difficult, because e.g. on the Red->Blue lines, there is no way to tell from the real-time feed if a given Red Line train will be continuing through to Hillsboro. You could tell with the GTFS-realtime feed and a PostGIS server as well as gtfsrdb.