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Equipment Package: Roadway Traffic Information Dissemination

Description: This equipment package provides the roadside elements of traffic information dissemination including DMS, HAR, and talking pedestrian signs.
Included In: Caltrans Roadside Equipment
Citrus Heights Roadside Equipment
City of Davis Field Equipment
City of Elk Grove Field Equipment
City of Folsom Field Equipment
City of Rancho Cordova Field Equipment
City of Roseville Roadside Equipment
City of Woodland Field Equipment
Municipal Field Equipment
Sacramento City Roadside Equipment
Sacramento County Roadside Equipment
Yuba City Field Equipment
Processes: 1.2.7.1 - Process Indicator Output Data for Roads
1.2.7.5 - Process Indicator Output Data for Freeways
1.2.7.9 - Process Roadway Information Data
User Service Requirements: 1.0 - TRAVEL AND TRAFFIC MANAGEMENT
1.5 - TRAVELER SERVICES INFORMATION
1.5.2 - TSI shall include an Information Access function that allows travelers to access the available information.
1.5.2.5 - Information Access shall provide the capability for travelers to access the TSI information via any of, but not limited to, the following methods:
1.5.2.5(a) - Highway advisory radio.
1.6 - TRAFFIC CONTROL
1.6.0 - ITS shall include a Traffic Control (TC) function. Traffic Control provides the capability to efficiently manage the movement of traffic on streets and highways. Four functions are provided, which are, (1) Traffic Flow Optimization, (2) Traffic Surveillance, (3) Control, and (4) Provide Information. This will also include control of network signal systems with eventual integration of freeway control.
1.6.3 - TC shall include a Device Control function.
1.6.3.3 - The Device Control function shall provide the capability to exercise control over those devices utilized for traffic control.
1.6.3.3.1 - Device Control shall include the capability to control traffic signalization, including rapid modification of signalization parameters to respond to traffic requirements.
1.6.3.3.2 - Device Control shall include the capability to dynamically control traffic signing.
1.6.3.3.3 - Device Control shall include the capability to control freeway ramp metering.
1.6.3.3.4 - Device Control shall include the capability to exercise dynamic control over the infrastructure (such as reversible-lanes, turning restrictions, etc.).
1.6.3.4 - Device Control shall communicate control data to the following devices.
1.6.3.4(a) - Traffic signals.
1.6.3.4(b) - Ramp meters.
1.6.3.4(c) - Information signs.
1.10 - HIGHWAY RAIL INTERSECTION
1.10.3 - At all HRIs with active railroad warning systems, HRI shall manage the traffic in the intersection.
1.10.3.1 - HRI shall be capable of augmenting the intersection with standard highway traffic signal devices.
1.10.3.3 - HRI shall provide an Intelligent Intersection Controller (IIC) function to manage highway and rail traffic in the intersection.
1.10.3.3.2 - IIC function shall control active railway warning devices, including flashing lights and physical barriers for highway and walkway lanes at HRIs.
1.10.3.3.3 - IIC function shall provide an intersection surveillance system to derive the real-time status of traffic in the intersection.
1.10.4 - HRI shall include a Standard Speed Rail (SSR) Subservice to manage highway and rail traffic at HRIs for rail lines with operational speeds less than 80 MPH.
1.10.4.1 - SSR shall include active railroad warning systems at designated HRIs.
1.10.4.2 - SSR shall include passive HRIs with non-active warning systems.
1.10.4.2.1 - SSR shall augment passive warning signs with additional highway traffic control devices at passive HRIs.
1.10.5 - HRI shall provide a High Speed Rail (HSR) Subservice for HRIs on rail lines with operational speeds between 80 and 125 MPH.
1.10.5.1 - HSR shall include active roadside message devices to provide highway closure information at HSR HRIs.
1.10.5.2 - HSR shall provide special safety features to enhance safety.
1.10.5.2.2 - HSR shall include a positive barrier function (e.g. four quadrant gates) to close the intersection to highway traffic for rail lines operating at speeds over 110 MPH.
5.0 - EMERGENCY MANAGEMENT
5.1 - EMERGENCY NOTIFICATION AND PERSONAL SECURITY
5.1.3 - ENPS shall include a Remote Security and Emergency Monitoring (RSEM) function to create an environment of safety in secure areas.
5.1.3.5 - RSEM shall include a Physical Security System (PSS) function.
5.1.3.5.4 - PSS shall warn travelers of impending security system deployment via local information systems.
5.1.5 - ENPS shall include a Protect Sensitive Traveler Information (PSTI) function to inhibit distribution of traveler information that is deemed to be sensitive.
5.1.5.1 - PSTI shall notify transportation operators and information providers when access to information from ITS surveillance and sensor systems must be restricted.
5.1.5.2 - The PSTI notification shall identify the geographic area, time, specific devices, and/or other information necessary to determine the traveler information that must be protected.
5.1.5.3 - PSTI shall restrict access to traveler information for the affected area until access restrictions are removed.
5.1.5.4 - PSTI shall notify transportation operators and information providers when traveler information access restrictions are removed.
8.0 - MAINTENANCE AND CONSTRUCTION MANAGEMENT
8.1 - MAINTENANCE AND CONSTRUCTION OPERATIONS
8.1.2 - Maintenance and Construction Operations shall provide a Roadway Management (RWM) function to monitor traffic, road surface, and environmental conditions and forecast traffic and road surface conditions to support management of routine and hazardous road condition remediation and to communicate changes in conditions. This function includes interactions among Traffic Managers, Supervisors, Dispatchers, Field Crews, Construction Crews, Asset Managers, Planning Agencies, and Weather Services Organizations.
8.1.2.1 - RWM shall support a number of different services, including but not limited to:
8.1.2.1(e) - Repair activities
8.1.3 - Maintenance and Construction Operations shall provide a Work Zone Management and Safety (WZMS) function, which provides support for the effectiveness, safety, and efficiency of roadway operations during all work zone activities. This function includes interactions among Traffic Managers, Supervisors, Dispatchers, Field Crews, Construction Crews, Public Safety Organizations, Information Service Providers, and Travelers.
8.1.3.1 - WZMS shall monitor, control, and direct activity in the vicinity of work zones.
8.1.3.1.1 - WZMS shall provide information about work zones, including but not limited to:
8.1.3.1.1(a) - Anticipated delays
8.1.3.1.1(b) - Alternate routes
8.1.3.1.1(c) - Suggested speed limit
8.1.3.3 - WZMS shall provide systems that communicate reliable, accurate, and timely traveler information, including but not limited to:
8.1.3.3(a) - Location, including lane closure information
8.1.3.3(b) - Alternate route / detour
8.1.3.3(c) - Work zone speed limit
8.1.3.3(d) - Delay

Last updated: 04-29-05