Performance Measure

The planning time index represents the time that must be added to travel time at free-flow speeds or the posted speed limit to ensure on time arrivals for 95 percent of the trips. Planning time = 95th percentile travel time (minutes) – Travel time at free-flow speed or posted speed limit. Average planning time index or planning time can be computed using a weighted average over person miles traveled.

Associated Objectives

Reduce the average planning time index for (specific routes in region) by X (no units) over the next Y years.
Reduce the average planning time for (specific routes in region) by X minutes over the next Y years.

Service Packages that Support the Performance Measure

TM04-Connected Vehicle Traffic Signal System
TM21-Speed Harmonization
TM03-Traffic Signal Control
TM05-Traffic Metering
TM06-Traffic Information Dissemination
TM08-Traffic Incident Management System
TM20-Variable Speed Limits
TM22-Dynamic Lane Management and Shoulder Use
MC06-Work Zone Management
TI01-Broadcast Traveler Information
TI02-Personalized Traveler Information
TI03-En-Route Guidance

Associated Goals

Improve the efficiency of the surface transportation system
Improve the resiliency and reliability of the surface transportation system

Planning Factors

G. Promote efficient system management and operation;
I. Improve the resiliency and reliability of the transportation system and reduce or mitigate stormwater impacts of surface transportation;

Source

Planning for Operations Desk Reference