CurbLR

CurbLR is a data standard for describing curb regulations. It uses a simple structure to store complex restrictions and conditions regarding where different users can park, load, or stop their vehicles at different days and times. The CurbLR specification exists to help government agencies effectively manage and regulate the curbside, and to support public and private users of city streets.

CurbLR is a common language on which many things can be built, including rules engines, query APIs, consumer notification services, mapping tools, and analytic models. It uses linear referencing to link regulation information back to the street, making it easy for government agencies and third parties to use this data with their own maps.

Curb regulations are communicated by physical assets like parking signs, meters, and curb paint. These have a specific set of coordinates and are easy to map. But the concepts they convey are more difficult. For example, a pair of parking signs are more than just two independent points; they represent an invisible rule that applies to a specific section of a particular edge of a specific street. Curb regulations are regulatory geometries, not physical geometries.

To handle this, CurbLR uses point-based asset data as the building blocks for the spec, but supplements that with additional location information and structure. First, CurbLR includes linear references that relate assets to their location along a street, using the SharedStreets Referencing System. In addition, it provides a template to store structured data about the curb rule itself, including what is being restricted or allowed, when a rule applies and for whom, how it is applied, and how it relates to overlapping regulations. This makes it easy to map curb regulations anywhere in the world.