How are road construction crews able to maintain traffic flow through work zones?
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Through very careful planning.
For example let’s say you’re replacing the sewer in the middle of a road that normally has parking on both sides. Maybe there’s enough space to cone off the middle of the road, temporarily ban parking, and divert cars around the work zone (so they’re driving where cars would normally park.) If that’s not possible, maybe you can get a single lane of traffic through, and then you need to use traffic control personnel to tell drivers when it’s their turn to go.
On larger projects like a highway reconstruction, sometimes you even have to pave a temporary driving surface on one side of the road, so that you can work in the main area. It really depends on the job.
Approved traffic management plans are very much the norm now in my area, depending on the size and impact of the project.
You mean like how do the sign people coordinate? They can physically see each other or they use radios
I design roads for a living. While others have pointed out that there’s a lot of planning involved with the construction side of things i.e. diverting traffic around the site or building side tracks, there is also a hell of a lot of planning done during the design phase to ensure that the finished product is actually able to be constructed like this in the first place. As a designer, it’s not just about the design of the finished product; it’s about the whole construction process from start to commissioning.
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