The Corradino Group, Inc. Bid Document (15)

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Page 193CITY OF SUNNY ISLES BEACH • RFQ #26-07-01 • CONTINUING PROFESSIONAL ARCHITECTURAL AND ENGINEERING CONSULTING SERVICES (CCNA) TAB 4 | APPROACH/METHODOLOGY Trip Generation Calculations Trips to/from the site shall be estimated using the latest Institute of Transportation Engineers (ITE) Trip Generation Manual. Sufficient information about the different uses should be provided to explain the choice of land use codes used (e.g., indicate the number of stories in a multi-family structure to explain the choice of low-rise, mid-rise, or high-rise multi-family land use codes). Use of the Manual’s information (e.g., choice of average rate or equations) should follow the guidance provided in the latest edition of the ITE Trip Generation Handbook (Chapters 3 and 4 in the 3rd ed.). Use of rates other than ITE should be supported by trip generation data, ideally collected from at least two similar sites within Miami-Dade County. The method for collecting trip generation data should follow the guidance in the latest edition of the ITE Trip Generation Handbook (Chapter 9, 3rd ed.). To estimate the net new trips from a project, subtract vested trips and any existing-use trips from the proposed project’s total trip-generation potential. Trip reduction for existing land use, however, will be permissible only if the site was operational within the last twelve months. For purposes of access management analysis, the total trips (prior vested plus additional, new trips) should be analyzed at site access and connection points to the road network. Internal capture estimates shall be based on the methodologies in the latest edition of the ITE Trip Generation Handbook (Chapter 6, 3rd ed.). The handbook currently contains internal capture rate limits for six classes of land uses (residential, retail, restaurant, etc.). In a multi-use site with distinct uses that warrant separate ITE land use codes but belong to the same class, the trip capture calculation should be performed on the sum of their estimated trips as a group (eg, add all the single-family and multi-family residential trip generation together and treat the sum as a single residential use for internal capture). Following the internal capture calculation, the total gross external trips for some land uses may be reduced by a pass-by capture rate to account for traffic already traveling on the adjacent roadway. The only land uses for which this reduction can be applied are those with pass-by capture data published in the latest edition of the ITE Trip Generation Handbook (Chapter 10 in the 3rd ed.), and only for the periods (Daily, AM, PM) for which rates are published. For each land use, the average rate for the studied sites should be used. The split of pass-by traffic into entering and exiting components should be the same as the enter/exit split of the gross external trips, not 50/50. The split of pass-by traffic from the two directions of traffic on the roadway should be consistent with the directional split of the street traffic. The total number of pass-by trips shall not exceed ten percent of the total background traffic on the adjacent roadway. In the analysis of the site-access intersections, the pass-by trips shall be included and separately identified. In cases where median controls limit left-in/left-out access to the site, traffic on the “far side” of the road can be considered as a source of captured trips; however, the effects of that traffic in the associated necessary left turns and U-turns, and added flow at the upstream and downstream median openings, or intersections, should be identified as development traffic at those locations. No reductions shall be made for diverted trips. Reduction factors for internal capture of trips between land uses in a mixed-use project, or for pass-by trips, shall be justified and shall comply with ITE’s trip