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Table 2-1 provides an overview of the top-level requirements that serve as a basis for developing the detailed requirements specified in this document.
Table 2-1: Top-level Requirements Overview
| Top-level Requirements |
| 1. Real-time trailer identification: Provide trailer number, status, and location |
| 2. Accurate time of connection and disconnection activities: Provide time and position of a
trailer hook and drop |
| 3. Location and mapping of trailers: Provide a map showing a trailer's location |
4. Geo-fencing to identify a risk area to monitor: Provide geo-fencing for keeping a trailer in
and out of a risk area |
5. Unscheduled movement notification: Provide a notification of a trailer that moved outside
of its geo-fence |
6. Remote sensing of a loaded or empty trailer: Provide an indication of a loaded or empty
trailer |
| 7. Door sensors: Provide an indication of open or closed doors |
| 8. Alerts: Provide alerts for geo-fencing and cargo and door events |
Three scenarios were developed to test the requirements in regard to safety, security, and trailer utilization:
- Scenario 1: Truckload/Dry Van:
- Scenario 1 will include trailer tracking of the Truckload/Dry Van portion of the trucking industry. Loads are general dry freight, such as electronics, clothing, and potatoes. The loads will vary throughout the season, and will be delivered throughout the 48 states.
- Scenario 2: Truckload/High Value:
- Scenario 2 will include trailer tracking of the Truckload/High Value portion of the trucking industry. Loads are general high-value dry freight, such as retail items, electronics, and food. The loads will vary throughout the season, and will be delivered throughout the 48 states.
- Scenario 3: HAZMAT/Explosives:
- Scenario 3 will include trailer tracking of the HAZMAT/Explosives portion of the trucking industry. Loads are Class 1.1 – 1.6 explosives. The loads will vary throughout the season, and will be delivered throughout the 48 states. The transport of some U.S. military loads requires mandated satellite mobile communications systems on the tractors in this scenario.
Table 2-2 depicts the mapping of the requirements to the three pilot test scenarios:
Table 2-2: Requirements to Scenarios Mapping
| Function |
Scenario |
| 1 |
2 |
3 |
| 1 Near real-time trailer identification |
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| 2 Accurate time of connection and disconnection activities |
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| 3 Location and mapping of trailers |
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| 4 Geo-fencing to identify a risk area |
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| 5 Unscheduled movement notification |
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| 6 Remote sensing of a loaded or empty trailer |
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| 7 Door sensors |
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| 8 Alerts |
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