InSync's Performance

Columbia, MO


Columbia, MO (Grindstone Parkway)


Missouri Department of Transportation Central District





Contact Info

Trent Brooks, District Traffic Engineer, Missouri DOT or 573.526.6880

Scott Bitterman, Engineer, City of Columbia or 573.874-7250

Length of Corridor

2.6 miles

Deployment Date

January 2010

InSync Type

InSync Standard


Heavy, variable traffic volume related to university events, oddly spaced intersections

Previous signal management

Coordinated timing plan

The Missouri DOT (MoDOT) experienced challenges coordinating Grindstone Parkway in Columbia due to its proximity to the University of Missouri campus. On a day-to-day basis, MoDOT’s objective was to achieve east-west bidirectional progression. However after football games and other university events that cause large, unpredictable surges in traffic demand, the signals needed to put more priority on the coordination of southbound traffic on Providence, making the eastbound turn onto Grindstone to leave on US-63. By switching from a coordinated timing plan to InSync adaptive traffic control, MoDOT made a dramatic improvement in traffic operations which motorists noticed. InSync uses its built-in artificial intelligence to serve actual demand whenever and wherever it occurs, reducing stops, travel time and delay.


Daily Benefit Annual Benefit
Vehicle Hours of Travel
133 hours 34,680
Fuel Consumption
114 gallons 29,640 gallons
14,627 stops 3,803,020 stops
Total Economic Benefit $3,751 $975,260

Calculations are based on an ADT of 27,246 vehicles and an assumption that the change impacts 50% of the ADT. All calculations are based on normal weekday travel and the results indicate approximate benefits to drivers.



in stops


reduction in
travel time


in delay


in emissions


increase in
average speed


reduction in
fuel usage

Measures  of Effectiveness

Data collected by

Missouri DOT staff


Existing signal timing data collected January 2010; InSync deployed January 2010; InSync results data collected February 2010

Download Case Study and MOEs

InSync Type

InSync Standard

Detection Type

InSync Video

Cabinet Type


Controller Type

TS1 and TS2

Connection Type

Detector Cards

MoDOT Stoplight Device Aims to Ease Grindstone Traffic

A new traffic signal operation system being tested in Columbia can calculate the need for signal changes in real time. The Missouri Department of Transportation is testing the system called InSync along Grindstone Parkway, between Highway 63 and Providence Road, the department said in a news release.

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New Signal Software Keeps Traffic Moving in Columbia

Many of the state routes maintained by the Missouri Department of Transportation run through populated areas where signalized intersections are necessary to safely move traffic along the highway. MoDOT engineers work hard to make sure these signals function in the most efficient and safe way possible by carefully analyzing traffic movements and volumes and adjusting the signals as needed.

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High-Tech Signals Mean Smoother Travel on Route in Columbia

Most of us have found ourselves sitting at a red light, wondering how long we’ll have to wait before it changes to green. If you’ve spent any time with employees of MoDOT’s traffic division, you know that the system behind those lights can be highly complex, depending on how many vehicles use the intersection. (…) The new system is called InSync, and it can be attached to existing traffic management software.

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Project Highlight

InSync handles heavy, variable traffic related to university events


Download Case Study and MOEs

I’ve lived in Lenoir Woods for nine years and I drive Grindstone Parkway several times a week. Yesterday a minor miracle occurred. I drove that distance without having to stop for a red light. That contrasts with the thousands of times that I have stopped at each light, or more than 50% of them. When I multiply my past frustrations, time and gasoline times the number of cars that drive that stretch daily, it amounts to an amazing number of hours and dollars. Thank you, thank you to whomever made the changes. Please do not change it back.