Measuring Border Delay and Crossing Times at the U.S.–Mexico Border—Part II
Step-by-Step Guidelines for Implementing a Radio Frequency Identification (RFID) System to Measure Border Crossing and Wait Times
APPENDIX B SYSTEM EVALUATION TESTS
| Parameters Tested | Units | Expected Range (Value) |
|---|---|---|
| Tag Read Time Stamp Accuracy | ||
| Determine the time difference between the readers and central processing system by pinging the router and recording the time delay (time required to send the data from the readers to the central server). | Milliseconds | Less than 60 seconds (1 minute) |
| Accuracy of Crossing and Wait Times | ||
| Compare the total number of tags read by RFID system to total tags observed in the field (optional). | % of total readable tags | > 85% |
| Compare the difference in crossing and wait times of trucks using field measurements and the RFID system. | Minutes | If using GPS method to collect baseline data, difference between crossing/wait times obtained by RFID and GPS, for which the truck has both technologies, needs to be within 3 minutes for 85% of total trucks equipped with GPS and RFID tags. |
