The OU Intelligent Transportation Systems Laboratory. Lab Overview. Established in 1998 as a joint venture between ODOT and the OU School of ECE. The ITS Lab has been involved from the very beginning of the ITS program in Oklahoma.
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73 DMS Overhead Signs
Dynamic Lane Control
HAR/511Statewide ITS Implementation
Question: how can you realize the full functionality of a large, integrated multi-agency TMC without incurring the costs?
Answer: build a virtual TMC that allows the stakeholder agencies to remain in their current physical locations.
Each agency receives an instantiation of the Statewide ITS Console.
Nominally, this is a COTS PC with special hardware and software to support ITS functionality.
Build a geographically distributed, fault tolerant peer-to-peer network of ITS consoles.
Any group of mutually connected consoles can self-organize to control all ITS resources that are visible to the group.
one console self selects as Master.
others in the group self identify as Slaves.
The master manages message passing with MSMQ to maintain database synchronization between all members of the group.
User ID’s are associated with individuals.
There are eight user levels.
There are a large number of privileges
can be individually enabled/disabled on a per user basis (e.g. “can pan/tilt/zoom camera”).
Identity, user level, and privileges are maintained consistently when logging into any console in the State.
User levels and privileges used to prioritize access to ITS system resources (e.g. camera, DMS).
GOAL: for each type of system resource,
Provide a consistent, uniform control surface
Independent of specific make/model/vendor.
Develop custom software module for each type of device (camera, web cam, DMS).
Avoid vendor specific control software
Implement control surface with a superset of the special features/functionalities.
Unavailable features “grayed out.”
Make/model and vendor specific protocols stored in database.
Oklahoma City Metro: analog video
Tulsa Metro: packet switched digital video
CCTV system to support special “low bandwidth” consoles:
“Home” console… requires security HW (PIX/ASA)
Network “heals” automatically after outage.
Handhelds for DMS control and network monitoring.
Quick multiparty communications:
Development in progress for multi-agency radio system interoperability.