Hawaii Statewide ITS Architecture State Home Statewide Home Stakeholders Stakeholders Inventory by Stakeholder Services by Stakeholder Projects by Stakeholder Operational Concepts Inventory Inventory Inventory by Stakeholder Inventory by Entity Services Services Service Package Descriptions Services by Stakeholder Architecture Architecture Interfaces Architecture Flow Descriptions Projects Projects Projects by Stakeholder Resources How to Use Web Site Systems Engineering Analysis Project Documents ITS Architecture ITS Standards Glossary Feedback Project Details: HDOT-HWY Travel Time Expansion PROJECT OVERVIEW Project Name: Project Details: HDOT-HWY Travel Time Expansion Description: This project will expand highway travel time coverage on HDOT-HWY facilities. Status: Planned Timeframe: Near-Term Geographic Scope: Statewide Project ID: Stakeholders: Hawaii Department of Transportation - Highways Division Service Packages: ATMS02-1 - Traffic Probe Surveillance - HDOT Highways (HDOT-HWY) Project Inventory: HDOT-HWY Field Devices HDOT-HWY Traffic Management Center FUNCTIONAL REQUIREMENTS Click on a Project Inventory element from the list above to view functional requirements. Roadway Probe Beacons The field element shall communicate with passing vehicles for traffic data link time calculations and send collected data to the controlling center; identification will be removed to ensure anonymity. TMC Probe Information Collection The center shall collect traffic probe data from vehicles via roadside field equipment. INTERFACES Source Architecture Flows Destination HDOT-HWY Field Devices traffic probe data HDOT-HWY Traffic Management Center ITS STANDARDS SDO Document ID Title Type AASHTO/ITE/NEMA View List NTCIP Center-to-Field Standards Group Group ASTM View List Dedicated Short Range Communication at 915 MHz Standards Group Group ASTM/IEEE/SAE View List Dedicated Short Range Communication at 5.9 GHz Standards Group Group AASHTO/ITE/NEMA NTCIP 1201 Global Object Definitions Message/Data AASHTO/ITE/NEMA NTCIP 1206 Object Definitions for Data Collection and Monitoring (DCM) Devices Message/Data IEEE IEEE 1455-1999 Standard for Message Sets for Vehicle/Roadside Communications Message/Data SAE SAE J2735 Dedicated Short Range Communications (DSRC) Message Set Dictionary Message/Data OPERATIONAL CONCEPTS Stakeholder Roles and Responsibilities Hawaii Department of Transportation - Highways Division Obtain traffic images and traffic flow data through CCTVs and field sensors, and maintain operational control of its own field equipment.

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.