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​​​​​​​AASHTO Subcommittee on Transportation Systems Management and Operations

The AASHTO Subcommittee on Transportation Systems Management and Operations (STSMO) serves as the focal point for promoting and supporting integrated implementation of transportation systems management and operations (TSM&O) by engaging state DOTs, other AASHTO committees, and other partner organizations. 

STSMO has five technical working groups (TWGs):

  1. Systems Operations Strategies
  2. Performance Measures
  3. TSM&O Research
  4. Traffic Incident Management
  5. Connected Vehicles​

Webinar for Proposed Policy Resolution: AASHTO Signal Phasing and Timing (SPaT) Challenge

The purpose of this resolution is to approve an AASHTO nationwide challenge to deploy Dedicated Short Range Communications (DSRC) infrastructure with Signal Phase and Timing (SPaT) broadcast in at least one corridor (approximately 20 signalized intersections) in each of the 50 states by January 2020. The draft resolution and a supplementary background document are available below:

A webinar on the AASHTO SPaT Challenge was held on September 15, 2016, 1:00-3:00 PM EDT. A recording of this webinar and a PDF of the webinar slides are available below:

Please send your comments on the resolution to Patrick Zelinski at no later than September 25.

​​2016 STSMO Annual Meeting

The 2016 STSMO Annual Meeting was a joint meeting with TRB's RTSMO Committee and the AASHTO Subcommittee on Highway Transport (SCOHT). The meeting was be held August 1-5, in Denver, Colorado. Select presentations from the meeting are available on the following page.