ATMS10-Electronic Toll Collection
Transaction Set Diagram



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The following discusses how the National ITS Architecture provides the transportation service described by this market package. Each numbered item describes the operation of that portion of the market package identified with the corresponding number on the transaction set diagram.

Note that this transaction set diagram (TSD) is only 1 of the 2 TSDs and so only a portion of the numbered items below refer to the above TSD.

ATMS10 transaction set diagrams: 1 2 Next TSD

  1. In preparation for paying tolls, the Driver requests payment of the toll (request for service) from the Vehicle. The Toll Collection Subsystem monitors (vehicle characteristics) the physical characteristics of a passing vehicle so it can be classified and then records an image to uniquely identify it.

  2. When the Toll Collection Subsystem detects a vehicle, a request (request tag data) for information on the toll tag is made to the Vehicle. The Vehicle issues a request for payment from the Traveler Card. When payment is received from the Traveler Card, a response (tag data) is sent to the Toll Collection Subsystem that responds with a tag update. A message (in-vehicle transaction status) may be sent by the Vehicle to the Driver to confirm payment and/or update the value of the tag.

  3. When a toll payment is made, the status of the payment (roadside transaction status) may be displayed to the Driver with a signal, sign, or other equipment. Tolls that are collected (toll transactions) are sent to the Toll Administration Subsystem. The tolls can be sent as collected or can be aggregated and sent on a set schedule or as warranted. The Toll Administration Subsystem can provide information such as speed and travel time on vehicles paying tolls (toll probe data) to the Information Service Provider and Traffic Management Subsystem.

  4. Whenever there is any type of significant regional event that requires evacuation, the Emergency Management Subsystem can send a toll service change request to the Toll Administration Subsystem in order to temporarily reduce or drop the toll charges to facilitate rapid evacuation via a toll road. The Toll Administration Subsystem makes the appropriate changes and then indicates what has been done or will be done in a toll service change response to the Emergency Management Subsystem.

  5. An Information Service Provider can provide the current and advanced toll schedules for different types of vehicles (toll data) to the Fleet and Freight Management Subsystem. This information can be requested (toll data request) or can be provided on a set schedule or as revised.

  6. To assist in travel demand management, the Traffic Management Subsystem may make a toll service change request to change toll prices or procedures. The Toll Administration Subsystem may send a toll service change response to indicate when the request was or will be honored.

  7. The toll collection process is under the asynchronous setting of tolls (toll instructions) by the Toll Administration Subsystem.

  8. The Information Service Provider and the Fleet and Freight Management Subsystem receive current and advanced toll schedules for different types of vehicles (toll data). This information can be requested (toll data request) or it can be sent on a set schedule or as revisions warrant.

  9. Tolls that are collected (toll transactions) by the Toll Collection Subsystem are sent to the Toll Administration Subsystem. The tolls can be sent as collected or can be aggregated and sent on a set schedule or as warranted. The Toll Administration Subsystem sends the payments (payment request) to a Financial Institution. The Financial Institution may respond with transaction status. When an invalid payment is detected, the Toll Administration Subsystem may contact the DMV (license request) to determine the registered owner of the offending vehicle (registration). Violations (payment violation notification) are reported to an Enforcement Agency.

  10. The Toll Administrator can request (toll administration requests) information on toll operation. When requested or on a set schedule, the Toll Administration Subsystem provides a toll information presentation to the Toll Administrator.

  11. The Toll Operator can make toll operator requests for information on toll operations. When requested or on a set schedule, the Toll Collection Subsystem provides a toll operator information presentation to the Toll Operator.

  12. The Toll Administration Subsystem can support reciprocity between toll agencies/service centers. The Toll Administration Subsystem exchanges information (toll coordination) to support reconciliation of toll charges by customers that are enrolled with Other Toll Administrations. Additionally, toll schedule information, customer information and other toll service information are provided to coordinate toll operations.

Hypertext Architecture Version 6.0.0 generated on 4/23/2007 from the following databases
Physical Architecture dated 4/6/2007,
Logical Architecture dated 4/23/2007,
Market Packages dated 4/23/2007,
Security dated 4/20/2007,
User Services dated 4/9/2007,
AppMap dated 4/23/2007 and the
SDOMAP dated 4/23/2007