TRPA monitors congestion on roadways throughout the region to assist with regional transportation planning. A well executed transportation management system incorporates monitoring data, real-time information, and dynamic operations that respond to seasonal congestion and periodic congestion. 

Program Overview
Congestion-Travel Time

Congestion can be characterized by many metrics and sourced from a variety of different data sources. For the purpose of analyzing congestion in the Tahoe region, TRPA uses the Regional Integrated Transportation Information System (RITIS) probe data analytics suite, provided by the Federal Highway Administration. The data presented is median observed travel time for the segment. The median is the midpoint of how long it took travelers to travel the length of the segment, 50% of trips were faster than this time and 50% were slower.

Monitoring Sites

Select a Monitoring Site from the list or click a location marker on the map to explore.


No partners for this monitoring program.


No documents have been uploaded for this monitoring program.

No indicators associated with this monitoring program.

Monitoring Site List
Currently viewing of Sites Download Table