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Maintenance Funding Recommendations
Maintenance includes upkeep and replacement as necessary of all traffic and ITS components throughout the City, including traffic signals, communications infrastructure, school zone flashers, and operational upgrades.
Some key criteria to determine maintenance needs are:
Number of signals and changes in number of signals, and other field devices. Organizational structure of the responsible agency (sharing of resources with other functions) and budgeting structures. Congestion levels. Type of signal system (e.g., distributed or centrally controlled); distribution of signals on the network and need for interconnection. Development of signal timing plans (City personnel vs. consultants). Frequency of equipment maintenance Complexity of signal operation at the intersection
In Tyler’s case, the age of the system and the reliability of the system or the information provided by the system may not provide the efficiencies that might otherwise help keep staff levels to a minimum.
The City currently budgets around $160,000 annually for Traffic Operations Division maintenance between preventative maintenance ($98,000) and response maintenance ($62,000), an average of $1,074 per intersection.
To maintain functionality and efficiency of the City of Tyler’s Traffic Signal and ITS system, $450,000 should be allocated annually for maintenance. This amount equates to approximately $3,020 per year per signalized intersection, a conservative estimate based on national data points.