There have been several complaints about the interchange between I-64 and Hampton -- the response you reference might have been for another situation, as that does occur here. In the question you pose, you are correct, drivers within the intersection should clear before any traffic exits I-64, but it doesn't happen because drivers tend to be impatient and move to fill in gaps when they see them. We, and St. Louis City, monitor this area every day and make adjustments to coordinate the various signals along here. We will continue to monitor the area and make adjustments as needed. Andrew Gates, MoDOT Communications
It is possible. Crews have been removing the deck on the bridge, which requires using a saw to cut through the concrete. As a part of that process, they do use water. The barrier that they have under the bridge is good for catching concrete, but water can get through. Andrew Gates, MoDOT Communications
There's a lot of traffic and much of it is jockeying for position. You have two lanes coming on at Hampton, two lanes getting off at Clayton/Skinker and then a lot of ramps that are fairly close together on and off between there and Big Bend. After Big Bend, you have people jockeying for position for Hanley and for I-170. The updated ramps do move more traffic, but you also have more traffic that is using that area. Andrew Gates, MoDOT Communications
Currently, in the morning, we have the eastbound left as a flashing yellow arrow only with no green arrow. We'll check it out to see if the green arrow is needed. I have also asked our maintenance team to see if anything can be done about the dip you mention. Andrew Gates, MoDOT Communications
St. Louis County's plans to construct a "South County Connector" were permanently shelved more than two years ago. The project is defunct. David Wrone, St. Louis County
Was there a specific time you noticed this? Andrew Gates, MoDOT Communications
This modification is part of an ultimate plan involving Webster Groves, to carry two lanes through the Crossroads District in order to provide better separation between motorists traveling along Big Bend Boulevard and pedestrians using the sidewalk along Big Bend Boulevard in the Crossroads District. Those changes will be made at a future time when that section of Big Bend Boulevard is resurfaced.
Big Bend Boulevard between Berry Road and Gray Avenue was converted from four narrow travel lanes into two travel lanes with a center turn lane. The center turn lane is a safety feature that allows motorists waiting to make a left turn onto any of the many other side streets or driveways to do so without stopping in a through lane, including providing for exclusive left turn lanes at the Rock Hill Road traffic signal. It is common practice to separate left turns from through lanes at traffic signals where possible. The change in striping also provides wider lanes, which gives more room for motorists.
According to the Federal Highway Administration, a four lane to three lane conversion increases safety by reducing the number of conflict points by half and by removing left turning vehicles from the stream of traffic. Conflict points are any point where the paths of two through or turning vehicles conflict with each other. The probability of a crash increases with the number of conflict points. In other words, there are fewer opportunities for vehicles to conflict with each other. Therefore, designs that reduce conflict points are generally safer. Other safety and operational benefits include easier crossings for motorists and pedestrians and better sight lines. David Wrone, St. Louis County
On roads with frequent left turns at driveways and minor intersections, such as Big Bend Boulevard between Berry Road and Gray Avenue, reducing the number of through lanes by half in order to provide a continuous left turn lane does not reduce the amount of traffic the roadway can carry by half. This is due to smoother traffic flow resulting from removing left turning vehicles from the flow of through traffic. This turning traffic effectively causes a four lane road to operate similarly to a three lane road by blocking one of the through lanes.
Prior to implementing a reduction in lanes as part of a resurfacing project, the amount of traffic on the road is taken into consideration. Case studies have shown roads with daily traffic less than 17,500 vehicles are good candidates for four lane to three lane road diets. The traffic levels on Big Bend Boulevard between Berry Road and Gray Avenue are well below this threshold.
We are working with the utility company to get the utility covers raised. Thank you for your other comments about the road diet on Gravois. Andrew Gates, MoDOT Communications
Last week, a 'Road Crew' reader asked: “Three thoughts on the Big Bend restriping in Webster Groves. One, at either end, adding pavement arrows to the right lane may make drivers more aware of the the need to merge earlier than at the very last minute - the new signs don't seem to be working very well. Two, why not continue the lane reduction, further east, to Elm, since it's two lanes east of Elm? And three, the green sign on the north side of Big Bend is confusing, since the second line says "<- HAWKINS" when it's actually pointing at Grant. You have the read the third line, "NEXT SIGNAL" to sort of "get" what's trying to be communicated.” St. Louis County's Reply: Thank you for your suggestions regarding Big Bend Boulevard. We don't believe a pavement arrow is necessary at the merge point because we have two warning signs telling motorists the right lane ends, especially as motorists become accustomed to the striping change. Pavement marking changes will be made east of Gray Avenue to Elm Avenue when that segment of Big Bend Boulevard gets a new surface. We were able to relocate the “Berry Rd/Hawkins Ct/Next Signal” sign that you believe may be confusing slightly closer to Berry Road. David Wrone, St. Louis County
There is a dual left turn planned for eastbound Meramec Station Road, south of I-44, onto northbound Route 141 as a part of this project. Andrew Gates, MoDOT Communications
We hope to have this project out for bid later this year, with construction most likely beginning next year. David Wrone, St. Louis County
We are in the process of implementing egress-specific timing plans to be in effect after end of games. Please watch for improvements.
We will check this out - thanks!
We will have timing plans implemented to address this event within Forest Park & facilitate better flow of traffic.
We will verify this, but our vehicle clearance intervals (red + yellow) are specifically calculated for the intersection geometrics present.
I wish I could give provide a logical answer to your question, but I can't. I've sought enlightenment on this subject myself, without success. The phenomenon by which the same, contiguous strip of pavement bears more than one name remains a mystery. Perhaps it's a manifestation of local autonomy asserting itself in years past. But I simply don't know for sure. I'm sorry I can't be of more help. David Wrone, St. Louis County
There is a striping change yet for the dual left -- right now you have a left, a left-through, and a right. Before the project is complete, you will have two dedicated left turns and a right-through turn. However, if people are blocking the intersection, that is a law enforcement issues. When you see it, please share it with local law enforcement. Andrew Gates, MoDOT Communications
We are still working through various processes with Waze. Your best bet it to report issues on the roadway to our customer service section 24/7 at 314-275-1500. Andrew Gates, MoDOT Communciations
We have several improvements planned for the Page/I-270 interchange but at this point have not identified any funding for design or construction. Andrew Gates, MoDOT Communications
I would say that with the outer road there, fairly unlikely. None of the other roadways you mention have outer roads. Andrew Gates, MoDOT Communications