PennDOT Brags About Pennsylvania Interstates

March 29, 2000

SHARING TOOLS        | Print Subscribe
Ride quality on Pennsylvania interstates improved dramatically last year -- surpassing the national standard for ride smoothness, and producing the best scores in Pennsylvania Department of Transportation history.

According to state Transportation Secretary Bradley L. Mallory, PennDOT uses a worldwide standard for measuring pavement smoothness called the International Roughness Index (IRI). The index measures pavement roughness in terms of the number of inches per mile that a laser, mounted in a specialized van, jumps as it is driven across the interstate and expressway system. The lower the IRI number, the smoother the ride.
Pennsylvania's 1999 interstate International Roughness Index median value was 88, surpassing the 1998 national standard of 92. Mallory attributed Pennsylvania's smoother roads to the nearly $6 billion that Gov. Ridge has invested in road construction and improvements over the last three years.
Mallory said PennDOT has scheduled rehabilitation work for the remaining interstates that are in poor condition within the next five years. PennDOT has adopted new smoothness specifications on future interstate construction projects that are among the most stringent in the nation, heightening its emphasis on smooth roads.
"It's only a matter of time before Pennsylvania's roads are among the smoothest in the nation," Mallory said.

Comment On This Story

Comment: (Maximum 2000 characters)  
Leave this field empty:
* Please note that every comment is moderated.


We offer e-newsletters that deliver targeted news and information for the entire fleet industry.


ELDs and Telematics

sponsored by
sponsor logo

Scott Sutarik from Geotab will answer your questions and challenges

View All

Sleeper Cab Power

Steve Carlson from Xantrex will answer your questions and challenges

View All