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2010 Annual Report - Maryland State Highway Administration

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Customer Communications, Service and Satisfaction<br />

VIII<br />

Customer Communication<br />

Improving Truck Safety in Western <strong>Maryland</strong><br />

MD 135 is a two-lane, two-way road that traverses the side of Backbone Mountain<br />

in rural Western <strong>Maryland</strong>. A four-mile stretch of this road has an almost<br />

continuous steep downgrade that ends with a sharp right turn where the Potomac<br />

River, Savage River and steep rocks meet at the base of the mountain. This<br />

requires a near stopping condition for a lot of large trucks that use the road to<br />

serve local businesses. Although never statistically identified as a high-crash<br />

location because crashes were not frequent, the consequences were always<br />

severe - resulting in numerous fatalities – when there was a crash.<br />

SHA determined that safety provisions were in place but were not being fully<br />

used by truck drivers. This was addressed with a unique runaway truck detection<br />

and warning system and signs to better communicate with drivers along the<br />

way:<br />

The new signs are significantly oversized, high-performance, wide-angle,<br />

retro-reflective and placed in strategic locations down the mountainside to<br />

increase driver awareness.<br />

A sensor was installed at a point before the escape ramp where any transmission<br />

or brake fading would be identified. The system determines if the<br />

truck is going too fast and signals the High Intensity Beacon (HIB) lights to<br />

immediately start flashing on an overhead sign that reads “Truck Runaway<br />

Danger When Flashing - Escape Ramp One Mile.” This clearly indicates to<br />

the truck driver that the vehicle is a potential runaway and should strongly<br />

consider using the escape ramp a short distance ahead.<br />

A second mandatory truck pull-off brake check area is located after the HIB<br />

to give the driver a last attempt to stop the vehicle without having to use<br />

the ramp. If they determine that they have lost control, it is clear when and<br />

where to pull off into the escape ramp.<br />

Since the completion of the project, including implementation of the runaway<br />

truck warning system, there have been no fatalities at the base of the mountain<br />

as a result of truck runaways. Numerous phone calls from local truck drivers and<br />

past focus groups have indicated their approval and gratefulness for the additional<br />

safety measures taken by SHA to increase the awareness and make corrections<br />

for the atypical route.<br />

STATE HIGHWAY ADMINISTRATION | FY <strong>2010</strong> <strong>Annual</strong> <strong>Report</strong> 73

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