DOT Dashboard

Available Roads (Mobility)

Can you get there on the route you want?


Roads Open to Traffic

The percent of State Highway miles open to travel, yesterday (flooding, snow, landslides, etc.). To view current travel conditions, click the dial

People & Freight on the Roads

Percent of State Highway Miles meeting expectations for carrying loads (height, weight, and width) and for congestion. For a map of freight constraints, click the dial

Roads Impacted by Construction

The miles of State highway with any active construction work or material curing which impact normal traffic flow. For a map of the locations, click the dial

Roads Open to Traffic

Percent of State highway mileage open to traffic on the previous day. Data is updated Monday-Friday. Road closures may be the result of severe events lasting more than two (2) hours, such as: flooding, landslides, bridge closures, weather events, traffic incidents, fires, etc. This measure does not include construction-related closures.

People & Freight on the Roads

Percent of highways meeting expectations for carrying loads (height, width, and weight) and traffic volumes. These parameters are defined in the below table.

State Highway Type
Interstate Interregional 4-Lane Level 1 Freight Class Level 2 Freight Class Level 3 Freight Class
Bridge Height ≤ 16.0 ≤ 16.0 ≤ 16.0 ≤ 15.0 ≤ 15.0
Bridge Widen ≤ 32.0 ≤ 32.0 ≤ 28.0 ≤ 26.0 ≤ 24.0
Load Limit ≤ 8.0 ≤ 8.0 ≤ 8.0 ≤ 8.0 ≤ 7.0
Travel Way Width ≤ 32.0 ≤ 32.0 ≤ 28.0 ≤ 26.0 ≤ 24.0
Capacity (traffic volume)
See table footnote for variables
v > 21,100*Number of Lanes v > 20,800*Number of Lanes Rolling Terrain: AADT > 12,600
Level Terrain: AADT > 13,400
Rolling Terrain: AADT > 12,600
Level Terrain: AADT > 13,400
Rolling Terrain: AADT > 12,600
Level Terrain: AADT > 13,400

Variables

v = AADT/fHV (i.e. Volume/capacity ratio).

AADT = Annual Average Daily Traffic

fHV = 1/(1 + PHV*(EHV-1))

PHV = TAADT/AADT (i.e. fraction of the total traffic volume that is trucks)

TAADT = Annual Average Daily truck Traffic

EHV = Passenger car equivalent of a truck (by default this value is 2.0)

Roads Impacted by Construction

The miles of State highway with any active construction work or material curing which impact normal traffic flow. For a map of the locations included, click the dial.

Color Definitions

  • Poor performance (i.e. not meeting target).
  • Good performance, but at risk of falling below target.
  • Good performance.
  • Information only; no target has been set.

Related Resources