I will see what work has been done at this location through the CSB efforts and follow up with a technician in the field to continue the troubleshooting of the video detection to make sure the issue is resolved. The nature of vehicle detection, whether using video cameras or in-pavement sensors, is that there can often be inconsistencies in the way the problem presents, which makes it incredibly hard to troubleshoot. We will get this issue fixed though.
I have passed this along to our construction team working on that project to take a look at to see if anything may be able to be done. Andrew Gates, MoDOT Communications
The project you mention does bring Forest Park Parkway to an at-grade configuration. There is a signal at the intersection already that will be modified to include full access from all four directions now. This will require revising the traffic signal timing plans on the Kingshighway signals in this area to ensure proper progression is provided to prevent congestion.