Manhattan Traffic Signals
Status
Existing
Description
This element represents the City of Manhattan traffic signal system and other roadside equipment used for traffic control and management. The system include traffic signals, controllers, loop detectors, video detection, and other signal operation equipment used for the control and management of traffic at intersections. Emergency vehicle signal preemption capability exists at many intersections.
Stakeholders
Physical Objects
Functional Objects
| Functional Object | Description | User Defined |
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| Roadway Field Management Station Operation | 'Roadway Field Management Station Operation' supports direct communications between field management stations and the local field equipment under their control. | False |
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| Roadway Mixed Use Crossing Safety | 'Roadway Mixed Use Crossing Safety' is an advanced infrastructure application that detects pedestrians, cyclists, and other non–motorized users and provides active safety warnings to drivers when cross walks or other intersecting mixed use paths are occupied. | False |
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| Roadway Signal Control | 'Roadway Signal Control' includes the field elements that monitor and control signalized intersections. It includes the traffic signal controllers, detectors, conflict monitors, signal heads, and other ancillary equipment that supports traffic signal control. It also includes field masters, and equipment that supports communications with a central monitoring and/or control system, as applicable. The communications link supports upload and download of signal timings and other parameters and reporting of current intersection status. It represents the field equipment used in all levels of traffic signal control from basic actuated systems that operate on fixed timing plans through adaptive systems. It also supports all signalized intersection configurations, including those that accommodate pedestrians. In advanced, future implementations, environmental data may be monitored and used to support dilemma zone processing and other aspects of signal control that are sensitive to local environmental conditions. | False |
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| Roadway Signal Preemption | 'Roadway Signal Preemption' includes the field elements that receive signal preemption requests from emergency vehicles approaching a signalized intersection and overrides the current operation of the traffic signals to stop conflicting traffic and grant right–of–way to the approaching vehicle. | False |
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Interfaces To
(View Context Diagram)