Where is one of the biggest opportunities to get traffic on 141 moving in the morning? Anyone that drives south out of Johns Creek would agree that it is East Jones Bridge and 141. Below is a depiction of the standard backup I have seen between the hours of 7:00 am and 9:00 am.
The orange represents the backup southbound. The red on the east and western sides of the intersection represents the vehicles on those sides you see when you finally get to pass through the intersection. So what is wrong with that picture?
It’s important to note that nearly every vehicle east and west bound makes it through the light with just one cycle of the lights at the intersection.
Here is an aerial view of the intersection:
As you can see, only one lane in each direction east and west travel straight. With no additional asphalt the east bound side could be configured to carry two lanes straight through the intersection. But they need to add an additional through lane westbound.
(What is a FATTER Intersection? http://ejmoosa.com/blog3/2017/02/15/what-should-we-do-to-improve-johns-creek-traffic-flow-on-141/)
Doing this would make this intersection MUCH more efficient at a minimal cost. That would have the ability to keep this light green longer and move this traffic through the corridor.
Just two lights down at 141 and Peachtree Corners Circle, the light is green for 4 minutes. There is no backup heading south at this light whatsoever.
Also, with such short queues on the east and west bound sides of the intersection should indicate that they could keep the light green longer anyway. They have, for some reason, chosen not to.
Finally, they could do what we have done in other areas such as the stretch between Old Alabama and State Bridge on 141 and make the area three lanes through all the way to Spalding Drive, and this would require no additional asphalt.
- Fatter intersection east and west bound reduces red light time on 141
- Three lanes southbound using existing asphalt increases southbound capacity up to 50%.
- Longer green light times than 141 south currently has increases the volume of vehicles per light cycle.
We could get this traffic moving drastically without destroying the entire corridor and at a minimal cost.
Unfortunately, we wait while the City of Johns Creek works to convince everyone the only solution is three lanes in all directions.
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