| 1.0 | TRAVEL AND TRAFFIC MANAGEMENT |
| 1.3 | ROUTE GUIDANCE |
| 1.3.1 | RG shall include the capability to Provide Directions to travelers. |
| 1.3.1.2 | The Provide Directions function shall issue directions to travelers based on information about current conditions of transportation systems. |
| 1.3.1.2.1 | Current transportation system conditions upon which directions to travelers is based shall include, but not be limited to, the following: |
| 1.3.1.2.1(d) | Events taking place that influence travel routes. |
| 1.3.1.2.1(d).1 | Street closures. |
| 1.6 | TRAFFIC CONTROL |
| 1.6.2 | TC shall include a Traffic Surveillance function. |
| 1.6.2.1 | Traffic Surveillance shall include a vehicle detection function with the capability of accurately detecting vehicles in a real-time fashion. |
| 1.6.2.1.1 | Vehicle detection shall include the capability to determine those vehicles that are HOVs. |
| 1.6.2.2 | Traffic Surveillance shall include a data collect function to provide the capability to collect data for determining traffic flow and prediction. |
| 1.6.2.2.1 | The data collect function shall provide the capability to quickly feedback traffic data to the control processes. |
| 1.6.2.3 | Traffic Surveillance shall include a wide-area surveillance capability to include several jurisdictions. |
| 1.6.2.3.1 | The wide-area surveillance shall gather speed and flow information. |
| 1.6.2.4 | TC shall provide the capability to acquire detailed traffic measurements at specific locations. |
| 1.7 | INCIDENT MANAGEMENT |
| 1.7.1 | Incident Management shall provide an Incident Identification function to identify incidents. |
| 1.7.1.1 | The Incident Identification function shall include the capability to identify predicted incidents. |
| 1.7.1.1.1 | The Incident Identification function shall use information from the following types of sources, where available, to identify predicted incidents: |
| 1.7.1.1.1(a) | Traffic flow sensors. |
| 1.8 | TRAVEL DEMAND MANAGEMENT |
| 1.8.0 | ITS shall include a Travel Demand Management (TDM) function. Travel Demand Management will generate and communicate management and control strategies that will support and facilitate the implementation of TDM programs, policies and regulations. It consists of two major functions, which are, (1) Increase Efficiency of Transportation System and (2) Provide Wide Variety of Mobility Options. |
| 1.8.3 | TDM shall include a sensors/control function. |
| 1.8.3.1 | The sensors/control function shall provide the capability to gather information needed for the generation of management and control strategies to include, but not be limited to the, following: |
| 1.8.3.1(b) | Usage levels. |
| 1.10 | HIGHWAY RAIL INTERSECTION |
| 1.10.0 | ITS shall include a Highway-Rail Intersection (HRI) function to control highway and rail traffic in at-grade HRIs. Two sub-services are supported: Standard Speed Rail Subservice which is applicable to light rail transit, commuter rail and heavy rail trains with operational speeds up to 79 miles per hour (MPH); and High Speed Rail Subservice which is applicable to all passenger and freight trains with operational speeds from 80 to 125 MPH. |
| 1.10.1 | The Highway-Rail Intersection (HRI) function shall be applicable to operational, at-grade highway-rail intersections with train operational speeds up to 125 MPH. |
| 1.10.1.1 | HRI users shall include light rail transit and rapid rail transit approaching and crossing HRIs. |
| 1.10.1.2 | HRI users shall include commuter rail trains approaching and crossing HRIs. |
| 1.10.1.3 | HRI users shall include freight and intercity passenger trains approaching and crossing HRIs. |
| 1.10.1.4 | HRI users shall include highway vehicles approaching and crossing HRIs. |
| 1.10.1.5 | HRI users shall include motor vehicle operators, bicyclists and pedestrians approaching and crossing HRIs. |
| 1.10.1.6 | HRI users shall include train crews operating rail traffic while approaching and crossing HRIs. |
| 1.10.1.7 | HRI users shall include rail maintenance and inspection vehicles approaching and crossing HRIs. |
| 1.10.2 | HRI shall provide interfaces between highway and rail management functions. |
| 1.10.2.1 | HRI shall provide information management interfaces between highway and rail to coordinate traffic, demand and schedules. |
| 1.10.2.1.1 | HRI shall be capable of acquiring current train schedules from rail operations functions, and shall determine projected HRI closure times and duration. |
| 1.10.2.2 | HRI shall provide the capability for interactive real-time interfaces. |
| 1.10.2.2.1 | HRI shall provide the capability to interface with rail operations functions for rail traffic control information. |
| 1.10.2.2.2 | HRI shall provide the capability to interface with traffic management functions for highway traffic coordination. |
| 1.10.2.2.3 | HRI shall provide the capability to interface with trains approaching and crossing the HRI for traffic coordination. |
| 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. |
| 1.10.3.3.3 | IIC function shall provide an intersection surveillance system to derive the real-time status of traffic in the intersection. |
| 1.10.3.3.5 | IIC function shall report real-time HRI traffic status as advisories or alerts. |
| 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. |
| 1.10.5.2.1 | HSR shall close the HRI to highway traffic at a predetermined time (up to three minutes) before train arrival or when directed by train operations. |
| 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. |
| 1.10.5.2.3 | HSR HRIs shall verify the intersection's status as either "OPEN" or "BLOCKED" for rail traffic by an immobile obstacle. |
| 1.10.5.2.5 | HSR shall provide HRI status to the train as either a "PROCEED" or a "STOP" indication. |
| 1.10.6 | At HRIs with active railroad warning systems, HRI shall provide the capability for automatic collision notification to rail operations and traffic management. |
| 8.0 | MAINTENANCE AND CONSTRUCTION MANAGEMENT |
| 8.1 | MAINTENANCE AND CONSTRUCTION OPERATIONS |
| 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. |
| 8.1.3.1.3 | WZMS shall be able to divert vehicles around work zones via automated lane changing techniques. |
| 8.1.3.1.3.1 | WZMS shall collect information used to support automated lane changing, including but not limited to: |
| 8.1.3.1.3.1(a) | Volume |
| 8.1.3.1.3.1(b) | Occupancy |
| 8.1.3.1.3.1(c) | Speed |
| 8.1.3.1.3.1(d) | Headways |
| 8.1.3.1.3.1(e) | Vehicle characteristics |
| 8.1.3.1.3.1(f) | Merging distance |
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