Illinois Tollway I-Pass Toll Plazas
Status
Existing
Description
Toll Plazas providing electronic Toll Collection using the I–Pass system.
Stakeholders
Physical Objects
Functional Objects
| Functional Object | Description | User Defined |
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| Roadway Basic Surveillance | 'Roadway Basic Surveillance' monitors traffic conditions using fixed equipment such as loop detectors and CCTV cameras. | False |
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| Roadway HOV Control | 'Roadway HOV Control' monitors and controls high occupancy vehicle (HOV) and high occupancy toll (HOT) lanes. It includes traffic sensors that monitor HOV lane usage and display equipment such as lane control signals that provide lane status to drivers. | False |
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| Roadway Passive Monitoring | 'Roadway Passive Monitoring' monitors passing vehicles for a signature that can be used to recognize the same vehicle at different points in the network and measure travel times. Depending on the implementation and the penetration rate of the technology that is monitored, other point traffic measures may also be inferred by monitoring the number of vehicles within range over time. Today this approach is implemented most commonly using a Bluetooth receiver that passively monitors Bluetooth devices on–board passing vehicles and license plate readers that record the vehicle license plate number, but any widely deployed vehicle communications technology or feature that can be passively monitored to uniquely identify a vehicle could be used. | False |
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| Roadway Payment Support | 'Roadway Payment Support' represents the equipment that works in conjunction with the RSE to detect vehicles and identify and process violators when the RSE is used to support electronic payment. Various fee structures and payment strategies are supported including strategies that support reimbursements or credits that incentivize desired driving behavior. | False |
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| Roadway Toll Collection Support | 'Roadway Toll Collection Support' provides toll plazas the capability to identify properly equipped vehicles, collect electronic tolls, and provide a positive indication to the driver that a toll was collected. Violators are identified and images are collected. Toll transactions are stored and reported to the Payment Administration Center. | False |
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| RSE Automated Vehicle Operations | 'RSE Automated Vehicle Operations' includes the field elements that monitor and control access to and egress from automated lanes. It monitors and coordinates automated vehicle operations within the lanes. These lanes support vehicles operating in platoons with short headways. | False |
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| RSE CACC Operations | 'RSE CACC Operations' provides infrastructure support for formation and dissolution of strings of CACC–equipped vehicles and provides operating parameters to the strings of vehicles including string length, recommended speeds, and gaps. | False |
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| RSE Situation Monitoring | 'RSE Situation Monitoring' is a general functional object that supports collection of traffic, environmental, and emissions data from passing vehicles. The data is collected, filtered, and forwarded based on parameters provided by the back office. Parameters are provided to passing vehicles that are equipped to collect and send situation data to the infrastructure in snapshots. In addition, this object collects current status information from local field devices including intersection status, sensor data, and signage data, providing complete, configurable monitoring of the situation for the local transportation system in the vicinity of the RSE. | False |
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| RSE Traffic Monitoring | 'RSE Traffic Monitoring' monitors the basic safety messages that are shared between connected vehicles and distills this data into traffic flow measures that can be used to manage the network in combination with or in lieu of traffic data collected by infrastructure–based sensors. As connected vehicle penetration rates increase, the measures provided by this application can expand beyond vehicle speeds that are directly reported by vehicles to include estimated volume, occupancy, and other measures. This object also supports incident detection by monitoring for changes in speed and vehicle control events that indicate a potential incident. | False |
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Physical Standards
| SDO | Document # | Title | User Defined |
|---|
| ITE | ITE ITS Cabinet | ITS Standard Specification for Roadside Cabinets | False |
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| NEMA | NEMA TS 8 | Cyber and Physical Security for Intelligent Transportation Systems (ITS) | False |
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| USDOT | RSU V4 | USDOT Roadside Unit (RSU) Specification Document – Version 4 | False |
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Interfaces To
(View Context Diagram)