The <route/> element models agencies in OneBusAway. Routes are directly mapped from entries in the GTFS routes.txt file from the GTFS feeds that power an API instance.
<route> <id>1_48</id> <shortName>48</shortName> <longName>U Dist/Greenwood</longName> <description>U Dist/Greenwood</description> <type>3</type> <url>http://metro.kingcounty.gov/tops/bus/schedules/s048_0_.html</url> <color>00FFFF</color> <textColor>FF0000</textColor> <agencyId>1</agencyId> </route>
The fields of the route element closely match the fields defined for routes in the GTFS spec.
A few important details: