RSE Speed Warning

Overview

'RSE Speed Warning' notifies connected vehicles that are approaching a reduced speed zone, providing: (1) the zone's current posted speed limit and (2) any roadway configuration changes associated with the reduced speed zone (e.g., lane closures, lane shifts) if applicable, and (3) associated warning information (i.e., the reason for the reduced speed warning). Configuration parameters that define the applicable speed limit(s), geographic location and extent of the reduced speed zone, and roadway configuration information are received from a center or provided through a local interface. The characteristics of individual vehicles may also be monitored and used to warn vehicles with specific limitations that reduce safe operating speeds, (e.g., rollover risk for tall vehicles). This functional object works in conjunction with the 'Roadway Speed Monitoring and Warning' functional object, which uses traditional ITS field equipment to warn non-equipped vehicles.

This functional object is included in the "Connected Vehicle Roadside Equipment" physical object.

This functional object is included in the following service packages:

• VS05: Curve Speed Warning
• VS09: Reduced Speed Zone Warning / Lane Closure
• WX03: Spot Weather Impact Warning

This functional object is mapped to the following Functional View PSpecs:

• 1.1.1.6: Collect Vehicle Roadside Safety Data
• 1.1.2.6: Process Collected Vehicle Safety Data
• 1.1.6: Collect Vehicle Traffic Surveillance Data
• 1.1.7: Collect Vehicle Environmental Data
• 1.2.7.4: Process In-vehicle Signage Data
• 1.2.7.7: Process Vehicle Safety and Environmental Data for Output
• 6.7.3.5: Provide Short Range Traveler Information
• 9.2.3.8: Collect Connected Vehicle Field Equipment Status

Requirements

Information Flows

Standards

Currently, there are no standards associated with the functional object itself though the interfaces may have standards associated with them.