Roundabouts have become very popular in Australia and many countries in Europe during the past few decades. In the U.S.A., however, roundabouts are just beginning to become an alternative treatment … [Read more...] about Modern Roundabouts and Traffic Crash Experience in the United States
Parts of Roads
Roundabouts: An Informational Guide
Although roundabouts have been in widespread use in other countries for a number of years, it is only during the past few years that their application in the United States has received increased … [Read more...] about Roundabouts: An Informational Guide
Roundabout Design Guidelines
The Maryland State Highway Administration (SHA) began implementing modern roundabouts (RAB), circular at-grade intersections, in 1993. They are an effective intersection design which reduces the … [Read more...] about Roundabout Design Guidelines
Maintenance guidelines for cable barrier systems
Information provided below is from an email survey conducted in 2009 __________________ Rhode Island has a maintenance program called "replace it when it is damaged." Given the continued … [Read more...] about Maintenance guidelines for cable barrier systems
Maintenance guidelines for cable barrier systems
Information provided below is from an email survey conducted in 2006 __________________ Arizona maintains its cable barrier systems through an outside contract. At this point, the cost is … [Read more...] about Maintenance guidelines for cable barrier systems
Maintenance guidelines for cable barrier systems
Information provided below is from an email survey conducted in 2008 __________________ Texa DOT uses only proprietary high-tension cable median barrier. TxDOT follows manufacturer guidelines … [Read more...] about Maintenance guidelines for cable barrier systems