Traffic Impact Assessment for Sustainable

 A traffic impact analysis is a study which assesses the effects that a particular development’s traffic will have on the transportation network in the community. These studies vary in their range of detail and complexity depending on the type, size and location of the development. Traffic impact studies should accompany developments which have the potential to impact the transportation network. They are important in assisting public agencies in making land use decisions. These studies can be used to help evaluate whether the development is appropriate for a site and what type of transportation improvements may be necessary.


Below is example of TIA map of roads and calculation.

Traffic impact studies help communities to:

• Forecast additional traffic associated with new development, based on accepted practices.
• Determine the improvements that are necessary to accommodate the new development.
• Assist communities in land use decision making.
• Assist in allocating scarce resources to areas which need improvements
• Identify potential problems with the proposed development which may influence the  developer’s decision to pursue it.
• Allow the community to assess the impacts that a proposed development may have.
• Help to ensure safe and reasonable traffic conditions on streets after the development is complete.
• Reduce the negative impacts created by developments by helping to ensure that the transportation network can accommodate the development. 
• Provide direction to community decision makers and developers of expected impacts. 
• Protect the substantial community investment in the street system.