The Work Zone Data Exchange (WZDx) Specification aims to make harmonized work zone data provided by infrastructure owners and operators (IOOs) available for third party use, making travel on public roads safer and more efficient through ubiquitous access to data on work zone activity.
This PR resolves #305 by changing "right-chevrons" to "right-chevron" (removing "s") in the JSON Schema for the SwzDeviceFeed ArrowBoardPattern.
Per this commit and the ArrowBoardPattern markdown documentation file, "chevron" should be singular.