Interface: LBJ Express Roadway Devices - LBJ Express Traffic Management Center

LBJ Express Roadway Devices to LBJ Express Traffic Management Center Interface Diagram

Architecture Flow Definitions

air quality sensor control  (Existing)  Applicable ITS Standards

Data used to configure and control area pollution and air quality sensors.

air quality sensor data  (Existing)  Applicable ITS Standards

Measured air quality data, including measured levels of atmospheric pollutants including ozone, particulate matter, carbon monoxide, and nitrogen oxides, and operational status of the sensors.

emissions sensor control  (Existing)  Applicable ITS Standards

Data used to configure and control vehicle emissions sensors.

lane management control  (Existing)  Applicable ITS Standards

Information used to configure and control dynamic lane management systems.

lane management information  (Existing)  Applicable ITS Standards

System status of managed lanes including current operational state, violations, and logged information. This includes lane usage information including both traditional traffic flow measures and special information associated with managed lanes such as measured passenger occupancies. It also includes the operational status of the lane management equipment.

reversible lane control  (Existing)  Applicable ITS Standards

Control of automated reversible lane configuration and driver information systems.

reversible lane status  (Existing)  Applicable ITS Standards

Current reversible lane status including traffic sensor and surveillance data and the operational status and mode of the reversible lane control equipment.

signal control commands  (Existing)  Applicable ITS Standards

Control of traffic signal controllers or field masters including clock synchronization.

signal control device configuration  (Existing)  Applicable ITS Standards

Data used to configure traffic signal control equipment including local controllers and system masters.

signal control plans  (Existing)  Applicable ITS Standards

Traffic signal timing parameters including minimum green time and interval durations for basic operation and cycle length, splits, offset, phase sequence, etc. for coordinated systems.

signal control status  (Existing)  Applicable ITS Standards

Operational and status data of traffic signal control equipment including operating condition and current indications.

signal fault data  (Existing)  Applicable ITS Standards

Faults reported by traffic signal control equipment.

signal system configuration  (Existing)  Applicable ITS Standards

Data used to configure traffic signal systems including configuring control sections and mode of operation (time based or traffic responsive).

traffic detector control  (Existing)  Applicable ITS Standards

Information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors.

traffic detector data  (Existing)  Applicable ITS Standards

Raw and/or processed traffic detector data which allows derivation of traffic flow variables (e.g., speed, volume, and density measures) and associated information (e.g., congestion, potential incidents). This flow includes the traffic data and the operational status of the traffic sensor system.

vehicle emissions data  (Existing)  Applicable ITS Standards

Measured emissions of specific vehicles comprised of exhaust pollutants including hydrocarbons, carbon monoxide, and nitrogen oxides.