TxDOT El Paso District Automated Visibility Warning Systems
Status
Future
Description
Represents future Automated Visibility Warning Systems (AVWS). AVWS warn drivers by providing severe weather condition information like fog, snow, dust, or smoke. The systems require a weather station and DMS or flashing lights on a static sign and can be either independent or managed by a TMC. Flashing lights will activate or a message will be displayed on the DMS when severe weather conditions are detected. AVWS are also coordinated with regional traveler information systems to spread the appropriate warning messages to travelers. Systems are proposed for the US–67 Corridor.
Stakeholders
| Stakeholder |
Role |
Role Status |
| TxDOT |
Owns |
Future |
Physical Objects
Functional Objects
| Functional Object |
Description |
User Defined |
| Roadway Basic Surveillance |
'Roadway Basic Surveillance' monitors traffic conditions using fixed equipment such as loop detectors and CCTV cameras. |
False |
| Roadway Environmental Monitoring |
'Roadway Environmental Monitoring' measures environmental conditions and communicates the collected information back to a center where it can be monitored and analyzed or to other field devices to support communications to vehicles. A broad array of general weather and road surface information may be collected. Weather conditions that may be measured include temperature, wind, humidity, precipitation, and visibility. Surface and sub–surface sensors can measure road surface temperature, moisture, icing, salinity, and other measures. |
False |
| Roadway Warning |
'Roadway Warning' includes the field equipment used to warn drivers approaching hazards on a roadway. Warnings may be generated in response to roadway weather conditions, road surface conditions, traffic conditions including queues, obstacles or animals in the roadway, and any other transient events that can be sensed. The equipment monitors traffic and roadway conditions and may send data to a Traffic Management Center for processing or may process it to determine when a warning should be issued. When it is determined that a warning should be issued, the equipment is used to alert approaching drivers via dynamic warning signs, flashing lights, in–vehicle messages, etc. |
False |
Physical Standards
| SDO |
Document # |
Title |
User Defined |
| ITE |
ITE ITS Cabinet |
ITS Standard Specification for Roadside Cabinets |
False |
| NEMA |
NEMA TS 8 |
Cyber and Physical Security for Intelligent Transportation Systems (ITS) |
False |
Interfaces To
(View Context Diagram)
