Evaluate and upgrade TOC maintenance programs on an on-going basis.
A New Jersey Department of Transportation experience with ITS operations and maintenance in Transportation Operations Centers (TOCs).
- Evaluate ITS maintenance programs using established performance measures. Such measures include repair response time and device downtimes. The use of quantifiable measures will give TOCs an idea of their current level of operational performance. By conducting regular evaluations, TOCs can get a sense of how to improve on future designs so that maintenance needs are met. Key parameters that can be used include:
- system availability
- system reliability
- mean time to repair
- mean time to failure
- number of failed devices
- Institute spare parts and equipment management. The inability to replace a defective part, however small, can cause increased downtime and deficiencies in TOC operational functions. Using a purchasing assistant, TOCs can secure critical spare parts for in-house maintenance and warrantee care. ITS technologies are complex, and swapping a new part for a defective one can be a quick, simple solution that will keep benefits flowing. TOCs across the country are reporting inventories of 10%-15% spare parts in stock.
- Develop and implement a policy on ITS standardization. Effective operations at TOCs require that devices are interoperable and interchangeable. By developing a policy for ITS standardization, TOCs can ensure that new ITS devices, systems, communications, and spare parts will all work as intended, in an interoperable manner. TOCs will also have the ability to replace parts without having to worry about using a different vendor’s product, and system operators will be better prepared to deal with operational details. Standardization will have the added benefit of reducing the number of on-hand spare parts needed to make repairs. For example, the NTCIP family of standards on variable message sign (VMS), traffic controllers, etc., will produce an integrated, interoperable system.
- Implement a logging and event tracking system. In conjunction with a maintenance management system, TOCs can use a tag or barcode and a handheld scanner to automate inventory and event tracking, thus reducing or even eliminating much of the paper tracking. This will provide paperless long-term records with sorting capabilities.
Author: Patel, Raman K.
Published By: Transportation Research Center, Polytechnic University
Source Date: January 2005
Other Reference Number: FHWA-NJ-2005-010URL: http://www.state.nj.us/transportation/refdata/research/reports/FHWA-NJ-2005-010.pdf
Volpe National Transportation Systems Center
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