SystemMapper

See the location and details of all TriMet buses and MAX trains

Check how well (or not so well) the TriMet system is functioning, or even the status of the vehicle you're on.

Read the background and notes below, launch the Static or Interactive versions or:

Select which version to use: Static (simple) Interactive
Select what to filter by:
If filtering to specific lines/blocks/vehicles, separate them with commas (do not use spaces):
Select which vehicles to show:
If using the interactive version, select what the icons show:

Background:

Route and arrival data provided by permission of TriMet

TriMet's buses and trains send their current locations to TriMet's computer system and they have made this real-time data publicly available. When my Web site receives a request for updated data, it in turn asks TriMet's system for current data, formats the reply and sends it on to your browser.

Notes:

Separate multiple lines/blocks/vehicles with commas. Do not use spaces.
Information set to automatically update every 20 seconds
Portland Streetcar vehicles may also be added. They have a separate tracking system (by NextBus) which has it's own live map.
On the interactive version, icon border colors represent directions (Outbound, Inbound and Unknown) and shading loaded or stale
Also on the interactive version, click on a vehicle icon to expand it and show details.
"Track" removes all other vehicles and keeps the map centered on that one. To stop, click the "Update" button.
When icons are set to "Block" or "Line", vehicles which do not currently have one set will not be shown.
After closing an expanded icon when icons are set to "Line" or "Early/Late", the icon will show the vehicle number until the next update.
For MAX, train numbers are usually used instead of block numbers, which consist of the last two digits of the block number.
While the official TriMet interactive map does show vehicle locations, it can only do so on a by-line basis and only shows limited details.
Check up on late buses using the interactive version by selecting All buses, Off schedule only, and Early/Late
Find TriMet's hybrid buses on the static or interactive versions
I've also made a vehicle heatmap (try version 1 or version 2) and a map that shows only off-route vehicles
Follow the action by listening to the TriMet Scanner