Page Display Optimization

The Congestion Management Process Interactive Map is optimized for Internet Explorer 9 (IE9) or higher. The recommended screen resolution is 1600 x 900 or higher.


The left-hand menu includes functions to show/hide traffic data by Speed, Crash Rate and V/C Ratio, in addition to Programmed/Planned Improvement Projects.

Data Layers

Three types of traffic data are displayed for individual corridor segments. Segment data are color-coded by pre-set ranges, specified below:

  1. Speed - average miles-per-hour below the posted speed limit
  2. Crash Rate – crashes per 100 million vehicle-miles traveled
  3. V/C Ratio – volume to capacity ratio (percentage)

Select any corridor segment in the map to display a pop-up window with segment details. Note: Speed data is provided separately for each segment direction.

Map Display