Description of content

This Data Store shall be used within the Provide Traveller Journey Assistance Area. It shall contain information about the road network and the traffic conditions within it for use in planning trips.

The data in the Store shall be structured in the following way:
- area covered (characters, e.g. nation, region, city, state, area names(s))
- road network data (data for a digital roadmap using a standard format, e.g. GDF)
- link:
    - ID (number)
    - current traffic flow (number in vehicles per hour)
    - current average traffic speed (number in kph or mph)
    - current average traffic headway (number in seconds)
    - date for current traffic data (date string)
    - time for current traffic data (numbers defining hours, minutes and seconds)
    - predicted traffic flow (number in vehicles per hour)
    - predicted average traffic speed (number in kph or mph)
    - predicted average traffic headway (number in seconds)
    - prediction date (date string)
    - prediction time (numbers defining hours, minutes and seconds)

It shall be possible for link data to be stored for every link in the road network and for the current and predicted data to be updated whenever new data is received.  Also it shall be possible for there to be several sets of predicted data for different date/time combinations.

Diagrams

The Diagram(s) below is (are) the Diagram(s) where you can find the Datastore

DFD 6.5.3 Trip Planning

Input dataflows

ptja_store_ffm_and_hazardous_goods_data

ptja_store_road_trip_planning_data

ptja_update_PT_trip_planning_data

ptja_update_road_trip_planning_data

Output dataflows

ptja_read_road_trip_planning_data

ptja_retrieve_ffm_route_planning_data

ptja_retrieve_psef_route_planning_data

ptja_retrieve_road_situation_data

ptja_retrieve_road_trip_planning_data

ptja_road_data_for_travel_information