Best Practice

BEST PRACTICE:

D1−5: Corridor Modeling for Construction Closure and Restriction Alternatives

DESCRIPTION:

The Utah Department of Transportation (UDOT) used the local metropolitan planning organization (MPO) database and travel demand forecasting model to compare alternatives for a major Interstate reconstruction effort through a major population center. The model was already used for transportation planning using traffic assignment capabilities and allowed planners to evaluate closure scenarios and model the changes in volume on alternate routes. The analysis was used to fund capacity changes on alternate routes and to help determine the optimum construction strategies and sequencing.

REASON(S) FOR ADOPTING:

The analysis was performed as part of a comprehensive construction and procurement plan because of the magnitude of impact from significant Interstate reconstruction through a major population center. The scope of work necessitated increased analysis not typical for construction projects.

PRIMARY BENEFIT(S):

Detailed analysis data provides a basis for decision−making. The planner is better able to evaluate impacts on a corridor level, not just on one route.

MOST APPLICABLE LOCATION(S)/PROJECT(S):

Not typical for routine projects. The model is highly complex and data intensive. The model is mostly used in planning long−term improvements and is most appropriate for projects of regional impact with sufficient time to undertake long−term analysis.

STATE(S) WHERE USED:

Utah

SOURCE/CONTACT(S):

John Leonard, Traffic and Safety Operations Manager, Utah DOT
Phone: (801) 965−4045
E−mail: jleonard@utah.gov