The Open Mobility Foundation (OMF) is excited to announce the official release of the Curb Data Specification (CDS) 1.1 approved by the OMF Board of Directors. This is the latest version of our open standard for describing, managing, tracking, and sharing curb and parking policy, rules, availability, and data.
Developed through extensive collaboration among OMF members — including the SMART Curb Collaborative — and public working group meetings, this update reflects what agencies have learned in the field over the past two years and what they need to manage increasingly dynamic streets.
What’s new in CDS 1.1
CDS 1.1 is a backwards-compatible release that introduces several major enhancements to how curb assets, activities, and policies are represented. Highlights include:
- Curb Objects: Define the physical and digital assets that make up the curb — from signs and meters to EV chargers and bike corrals — for a clearer, more consistent picture of curb infrastructure and usage.
- Enforcement: Capture when and where violations or citations occur, including double parking, to help cities measure compliance and target problem areas.
- Payment Methods: Track multiple payment types, methods, and transaction IDs to support flexible, transparent pricing and easy integration across vendors.
- Real-Time Events: Share activity data with agencies as it happens, enabling more responsive, data-driven management of dynamic curb zones.
- External References: Connect CDS data fields with any related standard such as WZDx, CWZ, GBFS, GTFS, and MDS, expanding interoperability across the mobility ecosystem.
- Computer Vision & Vehicle Properties: Reflect advances in camera-based sensing and automated detection by expanding recordable vehicle attributes — from identifiers and propulsion types to size and permit details — for richer operational insight, including confidence levels for edge detection.
- Additional Features: Includes upgrades like custom attributes, policy and curb color, event tracking metrics, and more details in curb, policies, rules and events. See the release notes for full details.
These updates make CDS more practical, flexible, and ready to support both pilot projects and full-scale curb management systems.
Get started with CDS 1.1
The release includes new and updated documentation to help agencies and private partners adopt the standard quickly. Whether you’re ready to implement CDS 1.1 or just looking for more information, the OMF has a variety of resources available to help get you started:
- Website: CDS overview with links to key resources
- Intro Slide Deck: OMF & CDS overview in presentation format, with links to key resources
- One-Pager: OMF & CDS overview, ready to print and share
- GitHub Repository: Find the CDS 1.1 code release and review related discussion and contributions
- Policy Language: Sample policy language and guidance for cities that wish to write CDS into their operating policy, permits, tenders, and RFPs
- Privacy Guidance: Guidance related to the collection and handling of potentially sensitive information related to CDS
- Getting Started Guide: help structure a successful curb program with key questions and recommendations during each phase of the program’s development
- Launch Meeting – Meeting of our public working group reviewing the new features and upgrade resources
- Launch Slides – See our slides from this meeting outlining the major features in more details and with helpful diagrams
Whether you’re exploring a curb data pilot, integrating with existing systems, or developing new applications, these resources provide the tools to help you plan, build, and launch with confidence.
AVAILABLE NOW
CDS 1.1 is available now. We invite cities, vendors, and researchers to explore the new release, test the features, and share feedback as we continue to advance open, data-driven management of the public right-of-way.
ACKNOWLEDGEMENTS
Thank you to our current and past steering committee members, GitHub pull request and issue creators (CurbIQ, Populus, Umojo, INRIX, Passport, SFMTA, Omaha, Agence de mobilité durable de Montréal, and multiple USDOT SMART Curb Collaborative cities) for this release, and for the organizations that participated on our weekly working group calls. See the CDS 1.1 Release Notes for full details.
WHAT’S NEXT FOR CDS
CDS was developed as a free and open standard by OMF’s Curb Management Working Group. This public group, led by the OMF member steering committee, developed this updated CDS 1.1 release.
Community input and engagement will continue to shape the specification. The Curb Management Working Group is open to both OMF members and individual contributors. To participate in the development of CDS:
- Sign up for the Curb Working Group mailing list to get meeting invites, agendas, and important updates
- Join bi-weekly meetings (Tuesdays, 12pm ET) to discuss issues and hear from other contributors
- Follow progress and chime in on our CDS GitHub repository
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