Kauai Regional ITS Architecture

Project Details: Kauai DPW Fixed Dynamic Message Signs (DMS)


PROJECT OVERVIEW

Project Name:

Project Details: Kauai DPW Fixed Dynamic Message Signs (DMS)

Description:

This project will coordinate with HDOT-HWY-K to deploy permanent DMS with advisory speed messages. The signs will also have the capability to collect speed data.

Status:

Planned

Timeframe:

Long-Term

Geographic Scope:

Kauai

Project ID:

K-19

Stakeholders:

 County of Kauai - Department of Public Works
Hawaii Department of Transportation, Highways Division, Kauai District

Service Packages:

 ATMS06-1 - Traffic Information Dissemination - HDOT Highways Kauai District (HDOT-HWY-K)
ATMS19-1 - Speed Warning and Enforcement - HDOT Highways Kauai District (HDOT-HWY-K)

Project Inventory:

 HDOT-HWY-K Traffic Control Center
Kauai DPW
Kauai DPW Field Devices

FUNCTIONAL REQUIREMENTS

Click on a Project Inventory element from the list above to view functional requirements.

Roadway Speed Monitoring and Warning

  • The field element shall include sensors to detect vehicle speeds, under traffic or maintenance center control.
  • If the speed detected by vehicle speed sensors is determined to be excessive, the field element shall provide a safe speed advisory to passing drivers via a driver information system (such as portable messages signs, field to vehicle communications to in-vehicle signing systems, etc.).

TMC Speed Monitoring and Warning

  • The center shall collect fault data for the vehicle speed sensors for repair.
  • The center shall remotely control vehicle speed sensors and control parameters may include environmental and traffic conditions.

TMC Traffic Information Dissemination

  • The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
  • The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).

INTERFACES

Source Architecture Flows Destination
HDOT-HWY-K Traffic Control Center roadway information system data Kauai DPW Field Devices
HDOT-HWY-K Traffic Control Center speed monitoring control Kauai DPW Field Devices
Kauai DPW Field Devices roadway information system status HDOT-HWY-K Traffic Control Center
Kauai DPW Field Devices speed monitoring information HDOT-HWY-K Traffic Control Center
Kauai DPW Field Devices roadway information system status Kauai DPW
Kauai DPW Field Devices speed monitoring information Kauai DPW

ITS STANDARDS

SDODocument IDTitleType
AASHTO/ITE/NEMA View List NTCIP Center-to-Field Standards Group Group
AASHTO/ITE/NEMA NTCIP 1201 Global Object Definitions Message/Data
AASHTO/ITE/NEMA NTCIP 1203 Object Definitions for Dynamic Message Signs (DMS) Message/Data
AASHTO/ITE/NEMA NTCIP 1209 Data Element Definitions for Transportation Sensor Systems (TSS) Message/Data

OPERATIONAL CONCEPTS

Stakeholder Roles and Responsibilities
County of Kauai - Department of Public Works
Coordinate with HDOT-HWY-K to design and procure ITS field devices of Kauai County roads.
Hawaii Department of Transportation, Highways Division, Kauai District
Operate changeable speed limit signs, including collecting traffic count information from the devices.
 

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