Subsector: Parking or Road Pricing/Management
Shared Parking
VMT Reduction Potential: 4
Cost: 1
ROI: 5
StanCOG Relevancy: 3
Land Use Content: Urban, Suburban
Trip Type: Residential
Scale: Regional, Community
Timing: Short Term (1-3 years)
Implementors-Private: Developers (Employment), Developers (Residential), Property Managers
Implementors-Public: Municipalities, Regional Agencies
References: California Air Pollution Control Officers Association (2024), StanCOG 2026 Regional Transportation Plan/Sustainable Communities Strategy, City of Modesto Zoning Ordinance, City of Turlock Zoning Code

Description

Updating zoning codes to allow for shared parking amongst adjacent developments reduces the amount of land dedicated to parking and allows for denser infill development.

Implementation Details

  • Expand opportunities for shared parking agreements between adjacent commercial, residential, civic, and employment uses.
  • Incorporate shared parking provisions into specific plans and mixed-use development standards in downtown and transit-oriented areas.
  • Require parking demand studies when shared parking is proposed to demonstrate that peak demand periods do not substantially overlap.
  • Encourage shared parking near transit corridors and activity centers where excess parking supply can be converted to development, pedestrian, bicycle, or public-space uses.
  • Update municipal codes to allow for shared parking provisions.

Mitigation Potential

Limiting the amount of land dedicated to parking allows for denser development and more space for bicycle and pedestrian amenities which makes non-drive modes more attractive and reduces VMT.

For more details, see Victoria Transport Policy Institute – Shared Parking for VMT reduction quantification.

Linked Strategies

Equity Considerations

Encouraging reduced parking supply helps lower construction costs, which can benefit affordable housing developers and mixed use developments. Prioritize implementation in high-transit areas to reduce car dependency among low-income households. Include community outreach to ensure understanding of trade-offs, especially in areas where car ownership is a necessity. Pair with mobility benefits (e.g., subsidized transit passes, shared mobility access) for tenants in under-resourced communities.

Funding Sources

Requires primarily staff time for zoning updates, parking studies, development review, and agreements between property owners. Local jurisdictions may incorporate shared parking requirements into development codes and specific plans without substantial capital funding. StanCOG planning and TDM resources may support related planning, outreach, and coordination activities. Additional funding may be available through state and federal sustainable transportation planning programs when shared parking is incorporated into broader multimodal or infill planning efforts.

Examples/Case Studies

City of Modesto Shared Parking Regulations

The City of Modesto’s zoning code allows shared parking arrangements and parking reductions when applicants can demonstrate that participating land uses have different peak parking demands and that adjacent properties will not be adversely affected. The city recently streamlined review of reduced parking requests and recognizes shared parking as a tool to support mixed-use development, infill projects, and more efficient land use.

City of Turlock Shared Parking Regulations

Turlock’s zoning code allows multiple uses to share parking when they operate during substantially different days or hours or when one use has surplus parking. The City requires documentation demonstrating that the uses have compatible parking demand patterns and allows recorded agreements to maintain shared parking arrangements.