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Minimizing Transportation Impacts Through Required, Better, and Best Strategies in the City and County of Honolulu

Chapter 4 – Minimizing Project Impacts

To support Honolulu’s Complete Streets goals and ensure safety and mobility for all users, projects that generate transportation impacts may be required to implement transportation improvement strategies and/or Transportation Demand Management (TDM) measures. These actions are triggered by thresholds detailed in Sections 4.1 and 4.2 or when a project causes a significant transportation impact. The recommended strategies are categorized into Required, Better, and Best, as outlined in Table 4-1.

4.1 Transportation Improvement Strategies

Projects that generate more than 50 net new a.m. or p.m. peak hour vehicle trips must develop and submit transportation improvement strategies as part of their Transportation Impact Analysis (TIA). These strategies demonstrate the project sponsor's commitment to implementing mitigation measures to address potential transportation effects.

For projects generating 100 or more net new peak period trips and that include ongoing operational improvements, sponsors are also required to submit annual compliance reports for five years following project (or phase) completion. These reports must document the effectiveness of the implemented transportation improvements, including any reductions in vehicle trips.

4.2 Transportation Demand Management (TDM) Strategies

Similarly, TDM strategies are required for all projects that generate more than 50 net new a.m. or p.m. peak trips, with submission of the TDM plan during the TIA process. These strategies promote sustainable mobility and support multimodal transportation goals.

For larger projects (100+ peak trips) with ongoing operational TDM efforts, annual compliance reports are also required for five years. These reports should track the effectiveness of the strategies in reducing vehicle trips and advancing the project’s mobility goals.

Table 4-1 – Transportation and TDM Strategy Categories

Required Strategies

These are mandatory when specific conditions apply:

  • Transit

    • Bus shelters or upgrades are required if a stop lacks a shelter near the project.

    • Subsidized bus passes for tenants are required when the parking ratio exceeds 1:1.25 (residential) or 1:1,000 sq ft (commercial).

    • Concrete bus pads must be installed if absent at frontage stops.

  • Bike

    • Bike share passes for tenants are required under the same parking ratio triggers.

    • Short- and long-term bike parking must be installed when new units or floor area are added.

  • Pedestrian

    • Projects must install lighting, trees, trash bins, and other pedestrian amenities per the Complete Streets Manual.

    • New sidewalks, curb ramps, gutters, and ADA-compliant features are always required.

  • Vehicle

    • Street paving, striping, and signage to the road’s midpoint is required.

    • Shared parking strategies are mandatory in TOD areas and for residential developments with 10+ units.

    • Garage design for future retrofitting is optional if the parking ratio is exceeded.

Better Strategies

These strategies enhance multimodal infrastructure and may be required based on project context:

  • Transit & Bike

    • Real-time transportation information is required if the frontage includes a busy stop or rail station.

    • Lighted bus shelters are needed for stops with 100+ daily boardings.

    • Bike share stations, repair tools, and drop zones are encouraged if located near bikeways or generating 500+ daily bike trips.

  • Pedestrian

    • Projects should implement Oahu Pedestrian Plan improvements if applicable to their frontage or nearby intersections.

    • Crosswalks, raised intersections, and signal timing improvements may be required if identified in TIA analyses.

  • Vehicle

    • Signal upgrades are needed for large projects near older signal infrastructure.

    • EV charging stations must be provided for publicly accessible garages with 100+ spaces.

    • Car share spaces are required in downtown developments.

    • Unbundled parking and parking cash-out programs are required in TOD areas and larger residential developments.

Best Strategies

These represent high-performance, forward-thinking mobility enhancements:

  • Transit

    • Corridor-level transit capital improvements are expected for large projects near transit facilities.

    • Bus stop relocation, queue jumps, and signal interconnect trenching may be required when operational analyses call for them.

  • Bike

    • In-street bike corrals, onsite fleet bikes, and showers/lockers are promoted for large projects near bikeways or with significant bike traffic.

  • Pedestrian

    • Curb extensions (bulb-outs) should be added when site or operational analyses identify the need.

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