Traffic study

If the goal is that all development should never increase road congestion, car-centric, sprawled-out cities will never be able to change.

Traffic studies and their applications

The amount of time it takes to complete a traffic study is equally as ambiguous as the cost; it all comes down to the intricacy of the study and the surrounding factors. This leads to a self-fulfilling prophecy—future traffic studies assume that all travel is car-based, resulting in more road systems that can only be navigated by car. However, that are a few factors that can increase the price of these studies, including: location, the amount of time it takes to complete days, months, years , development requests, etc. As the traffic blog Urban Kchoze puts it: Huge intersections like these tend to result in high-speed travel during most periods of the day when it is not congested, creating noise pollution and having the potential for very dangerous crashes … Their surplus capacity may also induce more vehicle traffic than would have happened otherwise. But by developing at the edges of the city, these developments increase car use, further marginalizing alternate transport methods. INDOT has their own traffic impact study guidelines , as do most larger communities. Additionally, weather and national holidays can slow down the completion of the study.

But by developing at the edges of the city, these developments increase car use, further marginalizing alternate transport methods. Because developers have to pay for any redevelopment of the roads, they favor building in areas that need little change.

The following will refer to traffic impact studies, but apply to traffic impact analyses. The items that typically go into a traffic impact study are: Proposed development land uses, sizes and phasing Study locations, primarily intersections Existing traffic, usually turning movement counts including cars, trucks, pedestrians and bikes, and hose counts Times of days, days of week, and horizon years future years to be studied Expected traffic growth without development Expected nearby off-site developments Crash history The items that are output are: Existing congestion, typically in terms of level of service A-F like in schooldelay and queue lengths Existing queue lengths number of stopped vehicles in lane, typically measured in feet Forecasted congestion and queue lengths Alternatives for addressing the congestion and crash problems, such as: Additional lanes.

traffic studies slideshare

They are all traffic studies, but there are other types of traffic studies that are usually done for a governmental agency for their needs. This method also leads to sprawl.

They are usually based on the recommended practice of the Institute of Transportation Engineers.

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Traffic studies and importance