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13 OOS HAZMAT Parking Parking Parking 1 4 2,3 Figure 2. Typical electronic screening deployment: 1. Truck identified by transponder; 2. Truck weighed; 3. Inspection determination made; 4. Driver signalled to drive on or stop. Closed circuit television (CCTV), an IRISystem operator scans the wheels with the camera. A OCR, thermal image of the wheels, showing their relative tempera- License plate readers, ture, is displayed on the screen inside the van. As the applica- Weigh-in-motion (WIM), tion of brakes creates heat, the wheels with functional (warm) Overheight detectors, brakes appear bright white in the infrared image, while the Overwidth detectors, wheels with inoperative (cold) brakes appear dark. A color Cargo seal readers, and image enables the operator to easily identify a vehicle with High-speed cameras. functional or inoperative brakes (Federal Motor Carrier Safety Administration, Evaluation of Infrared Brake Screening Tech- VWS allow states to monitor commercial vehicles on routes nology, July 2002, Publication No. FMCSA-MCRT-02-100). that typically would not have enforcement resources dedicated to them, which expands the states' enforcement presence. In most states, an enforcement officer is dispatched to inspect a EMERGING TECHNOLOGIES USED IN COMMERCIAL VEHICLE INSPECTIONS vehicle that has been identified as problematic. Most juris- dictions currently do not utilize photo enforcement in support In addition to the existing technologies used in commercial of VWS. vehicle inspections, numerous emerging technologies also are being studied for use in commercial vehicle enforcement. ASPEN Roadside Inspection Software These technologies include In order to standardize the data collected during roadside Wireless truck and bus inspections, inspections, as well as the format in which the data is Five and nine-tenths gigahertz (5.9 GHz), collected--FMCSA developed the ASPEN Roadside Inspec- Inspection Selection System-Driver, tion Software. ASPEN allows roadside inspection data to be Electronic citations, and collected electronically and includes data validation--which Geo-fencing. improves data accuracy and limits data entry errors. ASPEN also prints the inspection report and contains communica- Wireless Truck and Bus Inspections tion protocols that allow the roadside inspection data to be uploaded to FMCSA databases electronically. ASPEN (or an Technologies currently are being tested that will allow equivalent) currently is used by 48 states. enforcement personnel to interrogate a commercial vehicle's on-board diagnostic systems, in order to identify vehicle- Infrared Brake Testers related concerns. For instance, a commercial vehicle's on- board diagnostic system could identify a brake malfunction. The Infrared Inspection System (IRISystem) is a mini- Information about this malfunction and the vehicle could be van equipped with an infrared camera on the roof and a passed onto roadside enforcement personnel for purposes of display screen inside the vehicle. As a commercial motor targeting the vehicle for further inspection. Roadside person- vehicle decelerates to enter a roadside inspection facility, nel at fixed inspection sites or in mobile units could use this