Des Moines Connected Vehicle Roadside Equipment

Status: Future

Stakeholders

StakeholderRoleRole Status
City of Des Moines Traffic and TransportationOwnsFuture

Physical Objects

Connected Vehicle Roadside Equipment

Functional Objects

Functional ObjectDescriptionUser Defined
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
RSE Environmental Monitoring'RSE Environmental Monitoring' collects environmental situation (probe) data from passing vehicles that are equipped with short range communications capability. The collected data includes current environmental conditions as measured by on–board sensors (e.g., ambient temperature and precipitation measures), current status of vehicle systems that can be used to infer environmental conditions (e.g., status of lights, wipers, ABS, and traction control systems), and emissions measures reported by the vehicle. The functional object collects the provided data, aggregates and filters the data based on provided configuration parameters, and sends the collected information back to a center for processing and distribution. This functional object may also process the collected data locally and issue short–term road weather advisories for the road segment using short range communications.False
RSE Intersection Management'RSE Intersection Management' uses short range communications to support connected vehicle applications that manage signalized intersections. It communicates with approaching vehicles and ITS infrastructure (e.g., the traffic signal controller) to enhance traffic signal operations. Coordination with the ITS infrastructure also supports conflict monitoring to ensure the RSE output and traffic signal control output are consistent and degrade in a fail safe manner.False
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
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

Physical Standards

Document NumberTitleDescription
USDOT RSUDedicated Short–Range Communications Roadside Unit Specifications (FHWA–JPO–17–589)This document will specify the requirements for roadside units (RSU) to serve as a network edge device for 5.9GHz DSRC infrastructure.

Interfaces To

(View Context Diagram)

Des Moines Area Vehicles
Des Moines City Hall Traffic and Transportation Offices
Des Moines ITS Roadway Equipment