Kauai Regional ITS Architecture

Project Details: HDOT-HWY-K Traffic Signal Upgrade


PROJECT OVERVIEW

Project Name:

Project Details: HDOT-HWY-K Traffic Signal Upgrade

Description:

This project will upgrade traffic signal systems to have remote monitoring capability. Existing modems in equipment could be lit up and FOC could be added. Alternatively, a Public-Private partnership with telecommunications providers could be established through an MOA.

Status:

Planned

Timeframe:

Near-Term

Geographic Scope:

Kauai

Project ID:

K-1

Stakeholders:

Hawaii Department of Transportation, Highways Division, Kauai District

Service Packages:

ATMS03-1 - Traffic Signal Control - HDOT Highways Kauai District (HDOT-HWY-K)

Project Inventory:

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

FUNCTIONAL REQUIREMENTS

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

Roadway Signal Controls

  • The field element shall control traffic signals under center control.
  • The field element shall report the current signal control information to the center.
  • The field element shall return traffic signal controller operational status to the center.

TMC Signal Control

  • The center shall remotely control traffic signal controllers.
  • The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
  • The center shall collect traffic signal controller fault data from the field.
  • The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
  • The center shall implement control plans to coordinate signalized intersections based on data from sensors.
  • The center shall manage boundaries of the control sections used within the signal system.
  • The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.

INTERFACES

Source Architecture Flows Destination
HDOT-HWY-K Field Devices right-of-way request notification HDOT-HWY-K Traffic Control Center
HDOT-HWY-K Field Devices signal control status HDOT-HWY-K Traffic Control Center
HDOT-HWY-K Field Devices traffic flow HDOT-HWY-K Traffic Control Center
HDOT-HWY-K Field Devices signal fault data HDOT-HWY-K Traffic Control Center
HDOT-HWY-K Traffic Control Center traffic sensor control HDOT-HWY-K Field Devices
HDOT-HWY-K Traffic Control Center signal control commands HDOT-HWY-K Field Devices
HDOT-HWY-K Traffic Control Center video surveillance control HDOT-HWY-K Field Devices
HDOT-HWY-K Traffic Control Center signal control device configuration HDOT-HWY-K Field Devices
HDOT-HWY-K Traffic Control Center signal control plans HDOT-HWY-K Field Devices
HDOT-HWY-K Traffic Control Center signal system configuration HDOT-HWY-K Field Devices

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 1202 Object Definitions for Actuated Traffic Signal Controller (ASC) Units Message/Data
AASHTO/ITE/NEMA NTCIP 1205 Object Definitions for Closed Circuit Television (CCTV) Camera Control Message/Data
AASHTO/ITE/NEMA NTCIP 1208 Object Definitions for Closed Circuit Television (CCTV) Switching Message/Data
AASHTO/ITE/NEMA NTCIP 1209 Data Element Definitions for Transportation Sensor Systems (TSS) Message/Data
AASHTO/ITE/NEMA NTCIP 1210 Field Management Stations (FMS) - Part 1: Object Definitions for Signal System Masters Message/Data
AASHTO/ITE/NEMA NTCIP 1211 Object Definitions for Signal Control and Prioritization (SCP) Message/Data
AASHTO/ITE/NEMA NTCIP 1214 Object Definitions for Conflict Monitor Units (CMU) Message/Data

OPERATIONAL CONCEPTS

Stakeholder Roles and Responsibilities
Hawaii Department of Transportation, Highways Division, Kauai District
Operate traffic signal systems for State owned intersections.
 

The Hawaiian language uses two diacritical markings. The 'okina is a glottal stop; and the kahako is a macron. The State of Hawaii strongly encourages the use of Hawaiian diacritical markings. The National ITS Architecture tool, Turbo Architecture, does not allow for the Hawaiian diacritical markings to be input and as such, customized service package diagrams, operational concepts and other outputs from Turbo are unable to reflect the diacritical markings. To ensure consistency in this ITS Architecture website, no Hawaiian diacritical markings will be used.