Street Design Manual

e. Access is to/from a major arterial roadway such as a Parkway, Multi-Way Boulevard or Multi-Lane Avenue f. Proposed access is within 1,000 feet of an interchange g. Involves an existing or proposed median crossover h. Involves an active roadway construction project i. Involves a break in controlled access along a corridor

D. Miscellaneous Applications: Traffic impact analyses shall be required: a. Planned Development Districts b. In response to Raleigh Planning Commission or Raleigh City Council concerns

Guidance: For rezoning applications, the basis of comparison for trip generation thresholds will be the difference between the maximum allowable land use intensity under current zoning compared to the maximum land use intensity under the proposed zoning. For site plans and subdivisions, the basis of comparison for trip generation thresholds should be the difference between trips generated by the site at the time of preliminary plan submittal versus the expected increase in roadway trips upon development of the site. Section 7.1.4 Study Area The extent of a traffic study depends on the location and size of the proposed development and the conditions prevailing in the surrounding area. It is recognized that an excessively large study area may unnecessarily increase costs, time and effort for the developer, the traffic engineer and City staff. Alternatively, an inappropriately small traffic study area may fail to include roadway segments and/or intersections that would need to be improved to accommodate the trips generated by a proposed development. Section 7.1.5 Access Points and Intersections Any traffic study that analyzes off-site impacts shall include all site access points and major intersections (signalized and unsignalized) adjacent to the site. Guidance: City staff (with input from the developer’s traffic engineer) will determine any additional areas to be included based on local or site- specific conditions, development size or neighborhood sensitivities. The study area boundaries may also be influenced by impacts other than pure capacity issues such as neighborhood cut-thru trips, known congestion issues, accident history, temporary anomalies in the existing roadway system that would influence travel patterns, long-range transportation planning goals, etc.

Raleigh Street Design Manual – Page 46