Stakeholder Contribution Expectations – User Needs
50
User Type
User Need
Description
Vehicle operator
Need the vehicle to be connected wirelessly to the SPD-HARM system
Vehicles should be wirelessly connected
using Connected
Vehicle or other conventional wireless technologies
Vehicle operator
Need to obtain specific traffic information from the vehicle or in-vehicle wireless devices
Information such as traffic flow, speed, acceleration/deceleration, weather,
incidents or other information impacting traffic conditions should be pulled from the vehicle.
Vehicle operator
Need information on recommended or required speeds and lanes of travel should be provided to drivers
In order to enable speed harmonization, recommend maximum speeds as well as recommended lanes of travel will be
provided to drivers
within the vehicles.
Vehicles
Need to exchange traffic flow and traffic condition information from other vehicles
To enable true speed harmonization, communication with other nearby vehicles on
the roadway will be
required.
Roadway System
Need to obtain information from traditional roadway sensor systems, in near real time, to assess roadway conditions
To aid in speed harmonization, the SPD-HARM
system should obtain
traffic flow and speed information from existing sensors (Vehicle Detection Sensors ) and other probe system sensors, if available