GtfsAccessPoint

This repository is now archived and subsequent works will be carried out the in Smart data models repositories.

Description

See https://developers.google.com/transit/gtfs/reference/#stopstxt

It is a GTFS stop which location_type is equal to 2.

Data Model

The data model is defined as shown below:

• id: Entity ID

  • It shall be urn:ngsi-ld:GtfsAccessPoint:<access_point_identifier> being access_point_identifier a value that can derived from the stop_id field.

• type: Entity Type

  • It shall be equal to GtfsAccessPoint

• source : A sequence of characters giving the source of the entity data.

  • Attribute type: Property. Text or URL
  • Optional

• dataProvider : Specifies the URL to information about the provider of this information

  • Attribute type: Property. URL
  • Optional

• dateCreated : Entity's creation timestamp.

  • Attribute type: Property. DateTime
  • Read-Only. Automatically generated.

• dateModified : Last update timestamp of this Entity.

  • Attribute type: Property. DateTime
  • Read-Only. Automatically generated.

The following Attributes shall be as mandated by GtfsStop:

• name
• code
• page
• description
• location
• wheelChairAccessible
• address
• hasParentStation

Examples

Normalized Example

Normalized NGSI response

{
    "id": "urn:ngsi-ld:GtfsAccessPoint:Madrid:acc_4_1_3",
    "type": "GtfsAccessPoint",
    "name": {
        "value": "Bravo Murillo"
    },
    "hasParentStation": {
        "type": "Relationship",
        "value": "urn:ngsi-ld:GtfsStation:Madrid:est_90_21"
    },
    "location": {
        "type": "geo:json",
        "value": {
            "type": "Point",
            "coordinates": [-3.69036, 40.46629]
        }
    },
    "address": {
        "type": "PostalAddress",
        "value": {
            "addressLocality": "Madrid",
            "addressCountry": "ES",
            "streetAddress": "Calle de Bravo Murillo 377",
            "type": "PostalAddress"
        }
    }
}

key-value pairs Example

Sample uses simplified representation for data consumers ?options=keyValues

{
    "id": "urn:ngsi-ld:GtfsAccessPoint:Madrid:acc_4_1_3",
    "type": "GtfsAccessPoint",
    "name": "Bravo Murillo",
    "location": {
        "type": "Point",
        "coordinates": [-3.69036, 40.46629]
    },
    "address": {
        "type": "PostalAddress",
        "streetAddress": "Calle de Bravo Murillo 377",
        "addressLocality": "Madrid",
        "addressCountry": "ES"
    },
    "hasParentStation": "urn:ngsi-ld:GtfsStation:Madrid:est_90_21"
}

LD Example

Sample uses the NGSI-LD representation

{
    "id": "urn:ngsi-ld:AccessPoint:Madrid:acc_4_1_3",
    "type": "GtfsAccessPoint",
    "name": {
        "type": "Property",
        "value": "Bravo Murillo"
    },
    "hasParentStation": {
        "type": "Relationship",
        "object": "urn:ngsi-ld:GtfsStation:Madrid:est_90_21"
    },
    "location": {
        "type": "GeoProperty",
        "value": {
            "type": "Point",
            "coordinates": [-3.69036, 40.46629]
        }
    },
    "address": {
        "type": "Property",
        "value": {
            "addressLocality": "Madrid",
            "addressCountry": "ES",
            "streetAddress": "Calle de Bravo Murillo 377",
            "type": "PostalAddress"
        }
    },
    "@context": [
        "https://schema.lab.fiware.org/ld/context",
        "https://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld"
    ]
}

Summary of mappings to GTFS

Properties

Same as GtfsStop.

Relationships

GTFS Field	NGSI Attribute	LinkedGTFS	Comment
	hasParentStation		shall point to another Entity(ies) of type GtfsStation

Open issues