Reliability on Major Routes -4a

This measure tracks the mobility of significant state routes in St. Louis and Kansas City.

Embed
Is Responsive
Embed Code
Is Responsive
Embed Code

AM St. Louis

AM Kansas City

AM Springfield

AM Columbia

PM St. Louis

PM Kansas City

PM Springfield

PM Columbia

Write Up:

In the third quarter of 2022, the average travel times were all within 17 seconds of the third quarter of 2021. In the St. Louis region, average travel times increased during the morning and evening peak periods. In the Kansas City region, the average travel time in the AM remained the same while the average travel time decreased in the PM peak. Average speeds across both regions ranged from 58 to 62 mph, compared to a range of  to 57 to 67 mph in the third quarter of last year. The morning average travel times in both regions were below their target times, while the average travel times in the evening were both slightly higher than the targets.

Planning time accounts for unexpected delays and indicates how much time customers need to plan for their trip to arrive on time 95% of the time. In St. Louis, motorists traveling during morning rush needed to plan 1 minute, 48 seconds more for a 10-mile trip than they would otherwise need in free-flow conditions. During the evening rush period, customers needed to plan for an additional 3 minutes, 47 seconds for a 10-mile trip. Customers traveling during the Kansas City morning rush needed to plan on an additional 1 minute, 30 seconds for a 10-mile trip than they would need in free-flow conditions. During the evening rush, customers needed to plan for an additional 2 minutes, 25 seconds of travel. The planning times were all higher than the second quarter of 2021 other than the evening rush in Kansas City. The planning times for both regions represent average rush-hour speeds between 44 and 52 mph.

Purpose of the Measure:

This measure tracks the mobility of significant state routes in St. Louis, Kansas City, Springfield and Columbia.

Measurement and Data Collection:

Travel time data is collected continuously via wireless technology. To assess mobility, MoDOT compares travel times during rush hour to free-flow conditions where vehicles can travel at the posted speed limit. This measure also assesses reliability, an indicator of how variable those travel times are on a daily basis.

The charts in this measure show the average travel time and the 95th percentile travel time, which is the time motorists should plan in order to reach their destinations timely 95% of the time.

The maps display the reliability of specific sections of roadways during rush hour.

The targets for average travel time are updated quarterly. The targets are established by projecting a 10% improvement over the average of the same quarter over the previous two years. The minimum value for the target time is 10 minutes. This corresponds to the time it takes to travel 10 miles at the posted speed limit of 60 miles per hour.

Results Driver

Contact Photo
employee photo
Nicole Hood
Title
State Highway Safety and Traffic Engineer
Department
Highway Safety and Traffic
Contact Info

Email: nicole.hood@modot.mo.gov

Phone: (573) 526-2803

Measurement Driver

Contact Photo
alex wassman
Alex Wassman
Title
Traffic Management & Operations Engineer
Department
Highway Safety and Traffic
Contact Info

Email: alex.wassman@modot.mo.gov

Phone: (573) 526-0121