Freeway Service Patrol Data

In some areas, additional data sources such as freeway service patrols may be available. Many TMC’s outsource this type of function, and the data are not always readily available to the TMC. In this case, data fusion or integration may be necessary to merge the operator logs and the freeway service patrol logs into the same database so that statistics can be run against the collective incident information. If both the operators and the freeway service patrol are using the same program and/or database for recording incidents, this data fusion may not be needed. As with the previous scenario, data for other roadways are typically not collected, again leaving the reporting basis for the TIM program to be solely on those roadways with TMC coverage, which are typically freeways.An example of how incident data are gathered by a freeway service patrol program comes from the Illinois Department of Transportation’s Emergency Traffic Patrol (ETP) Program. The figure below shows the ETP Assist Report form used by ETP personnel when responding to an incident. It can be seen that the ETP personnel must identify a variety of information about an incident, including arrival and departure time, incident cause (type), location (roadway and mile marker), vehicle type, number of lanes blocked, which lanes are blocked, and whether a truck is involved. Upon completion, the form can be scanned electronically, which significantly increases the quality of the data as it eliminates manual transcription. Other states and agencies have moved to computers or wireless tablets for data entry on-scene, removing the need for the scanning process.

Emergency Traffic Patrol Assist Report log form from the Illinois Division of HighwaysEmergency Traffic Patrol Assist Report log form from the Illinois Division of Highways

Freeway Service Patrol Data TMC