Traffic Impact Study Application Process and Methodology
A Traffic Impact Study (TIS) is required upon a developer submitting application for a building permit and/ or zoning approval. However, the Department strongly urges developers to request a preliminary TIS determination early-on in the development process (i.e. at the time of submitting documents to the Development Review Committee). Studies completed very early in the development process may need to be updated to include additional details as the site plans become specific. The initial study should be reviewed to ensure consistency with the current development plan or to indicate the need for additional study because of substantial changes in impact over those predicted initially.
1.0 STEP BY STEP PROCESS
2.0 TRAFFIC IMPACT STUDY METHODOLOGY
A TIS is required:
The City of Coral Gables has established the following guidelines for the preparation of Traffic Impact Studies (TIS) reports to ensure consistency of analysis and adequacy of information presented and timely review by city.
If the proposed project is not expected to generate new net trips or a very low number of new trips during either the morning or evening peak periods the requirement to analyze one or both of these periods may be waived by the Public Works Director or designee. Where the traffic peak hour in the study area occurs during a time period other than the normal commuting morning or afternoon peak periods of the adjacent street network, or occurs on a weekend, or if the proposed project has unusual peaking characteristics, these peak hours must also be analyzed.
The traffic volumes for the analysis hours should be adjusted for the peak season. Use of seasonal adjustment factors should be approved by the Public Works Director or designee.
Using the data collected, analysis will be undertaken to portray existing conditions, future conditions with committed developments, and future conditions with the project and committed developments. All analyses shall be done utilizing the latest edition of the HCM methodologies and the FDOT Quality/Level of Service Handbook.