Financec & Funding
systems such as replacing incandescent signal lamps
with LED lamps and adding battery backup systems to
controlled intersections.
Without a battery backup system in place, in the event
of a power outage or disturbance intersections are left
uncontrolled; the risk of accidents and injuries are
increased, and direct and indirect costs can be incurred.
Backup systems keep traffic flowing during power out-
ages and power disruptions but are not always recog-
nized as a standard component of traffic signal systems.
Power down
There are a number of options available to manage
intersection power outages. One solution has been to
rely on drivers to use the four-way stop procedure. This
helps to a degree, however it is a temporary solution that tance required for an officer to reach the intersection
does not work well in high volume intersections. Drivers and the size and volume of the intersection. A third solu-
often become irritated and aggressive, which leads to tion is to use generators as a temporary power solution
intersection accidents. for the intersection controls. This can be costly due to
Another solution is to place a traffic control officer at the fuel and manpower required. Another solution,
the intersection to direct traffic. This solution works well proven to be far more efficient and effective, is to include
based on the availability of resources, the time and dis- a “battery backup system”.
28 Vol 4 No 1 Thinking Highways
www.thinkinghighways.com
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