MDOT 720.2 Guidelines for Traffic Impact Reports and Studies
Effective Date: April 15, 2019 Note:There may be formatting differences between the electronic documents and the signed documents. MDOT signed policy supersedes all information provided on this page. Printed copies of this page only valid for this date: August 11, 2020
The purpose of a Traffic Impact Study (TIS) is to review impacts of a proposed development on the State Highway system, generally in conjunction with the issuance of an access permit.
The authority to require a TIS and related road improvement is found in COMAR Section 11.04.5.
The evaluation shall consider traffic capacity, signalization, safety, and multimodal issues. For those counties/jurisdictions that have not established their own traffic impact study guidelines, and an SHA Access Permit is needed, only Impact Study Guidelines.pdf SHA’s Guidelines for Traffic Impact Reports/Studies are to be followed. The report will be used to evaluate the needed improvements to support the proposed site access to the State Highway road system.