Add CDS reference

schemas/4.2/RoadEventFeature.json

@@ -149,6 +149,13 @@
                 "$ref": "#/definitions/Lane"
               }
             },
+            "impacted_cds_curb_zones": {
+               "description": "A list of references to external CDS Curb Zones impacted by the work zone",
+               "type": "array",
+               "items": {
+                  "$ref": "#/definitions/CdsCurbZonesReference"
+              }
+            },
             "event_status": {
               "description": "**DEPRECATED**",
               "$ref": "#/definitions/EventStatus"
@@ -516,6 +523,26 @@
         "value": ["unit"]
       }
     },
+     "CdsCurbZonesReference": {
+      "title": "CdsCurbZonesReference",
+      "description": "A reference to one or more CDS curb zones that are impacted by road work",
+      "type": "object",
+      "properties": {
+          "cds_curb_zone_ids": {
+             "description": "A list of CDS Curb Zone ids",
+             "type": "array",
+             "items": {
+                "type": "string"
+             }
+          },
+          "cds_curbs_api_url": {
+            "description": "An identifier for the source of the requested CDS Curbs API",
+            "type": "string",
+            "format": "uri"
+          }
+      },
+      "required": ["cds_curb_zone_ids", "cds_curbs_api_url"]
+  },
     "WorkerPresence": {
       "title": "Worker Presence",
       "description": "Information about the presence of workers in the work zone event area",

spec-content/README.md

@@ -38,6 +38,7 @@ The following objects are used to describe events ocurring on roadways (road eve
 
 Object | Description
 --- | ---
+[CdsCurbZonesReference](/spec-content/objects/CdsCurbZonesReference.md) | A reference to one or more CDS curb zones that are impacted by road work.
 [DetourRoadEvent](/spec-content/objects/DetourRoadEvent.md) | A detour on a roadway.
 [Lane](/spec-content/objects/Lane.md) | An individual lane within a road event.
 [RelatedRoadEvent](/spec-content/objects/RelatedRoadEvent.md) | Identification a road event that is related to the road event that the RelatedRoadEvent object occurs on.

spec-content/objects/CdsCurbZonesReference.md

@@ -0,0 +1,15 @@
+# CdsCurbZonesReference Object
+The `CdsCurbZonesReference` object describes specific [Curb Zones](https://github.com/openmobilityfoundation/curb-data-specification/tree/main/curbs#curb-zone) that are impacted by a work zone via an external reference to the Curb Data Specification's [Curb API](https://github.com/openmobilityfoundation/curb-data-specification/tree/main/curbs#curb-data-specification-curbs-api).
+
+Read more about the Open Mobility Foundation's [Curb Data Specification](https://www.openmobilityfoundation.org/about-cds).
+
+## Properties
+Property Name | Data Type | Description | Conformance | Notes
+--- | --- | --- | --- | ---
+`cds_curb_zone_ids` | Array; [String] | A list of [CDS Curb Zone](https://github.com/openmobilityfoundation/curb-data-specification/tree/main/curbs#curb-zone) `id`s. | Required |
+`cds_curbs_api_url` | String; [uri](https://datatracker.ietf.org/doc/html/draft-handrews-json-schema-validation-01#section-7-3-5) | An identifier for the source of the requested CDS Curbs API. This MUST be a full HTTPS URL pointing to the main curbs API that contains detailed information about each curb zone identified in `cds_curb_zone_ids`.| Required |
+
+## Used By
+Property | Object
+--- | ---
+`impacted_cds_curb_zones` | [WorkZoneRoadEvent](/spec-content/objects/WorkZoneRoadEvent.md)

spec-content/objects/WorkZoneRoadEvent.md

@@ -15,6 +15,7 @@ Name | Type | Description | Conformance | Notes
 `is_end_position_verified` | Boolean | Indicates if the end position (last geometric coordinate pair) is based on actual reported data from a GPS-equipped device that measured the location of the end of the work zone. | Conditional; required if `ending_accuracy` is not provided. |
 `location_method` | [LocationMethod](/spec-content/enumerated-types/LocationMethod.md) | The typical method used to locate the beginning and end of a work zone impact area. | Required | 
 `vehicle_impact` | [VehicleImpact](/spec-content/enumerated-types/VehicleImpact.md) | The impact to vehicular lanes along a single road in a single direction. | Required |
+`impacted_cds_curb_zones`| Array; \[[CdsCurbZonesReference](/spec-content/objects/CdsCurbZonesReference.md)\] | A list of references to external [CDS Curb Zones](https://github.com/openmobilityfoundation/curb-data-specification/tree/main/curbs#curb-zone) impacted by the work zone. | Optional |
 `lanes` | Array; \[[Lane](/spec-content/objects/Lane.md)\] | A list of individual lanes within a road event (roadway segment). | Optional | Please see [Business Rules](/Creating_a_WZDx_Feed.md#business-rules) #1 and #2.
 `beginning_cross_street` | String | Name or number of the nearest cross street along the roadway where the event begins. | Optional |
 `ending_cross_street` | String | Name or number of the nearest cross street along the roadway where the event ends. | Optional |