Contributor(s): National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; Xiao Qin; Yang Li; Habib Tabatabai; Andrew Graettinger; Mohammad Wael Amer; Frank Gross; Bob Scopatz; Sam Arnold; Jason J. Bittner; Dan D'Angelo; Hannah Silber; Neil Janes

There has been an increase in bridge and tunnel strikes in the United States, which present significant hazards to both the vehicles involved and the structural integrity of bridges and tunnels. Nationally, over 15,000 bridge strikes occur annually, costing millions of dollars in repairs and posing serious safety risks. The pressing need for a comprehensive solution is evident.

NCHRP Web-Only Document 411: Prevention and Mitigation of Bridge and Tunnel Strikes, from TRB's National Cooperative Highway Research Program, is supplemental to NCHRP Research Report 1132: Bridge and Tunnel Strikes: A Guide for Prevention and Mitigation.

NCHRP. 2025.253p.

By Ruth Halkon and Rick Muir

The United Kingdom has the reputation of having some of the safest roads in the world. Yet there is increasing evidence that they are becoming more dangerous. On average around 25,000 people are killed or seriously injured on our roads each year. This number had been constant for the last decade, following many years of reductions. Now the most recent data shows a five per cent rise in fatality rates, the first significant increase in 40 years. Improvements in technology may have made cars safer for those inside them, but there is evidence that these bigger, heavier vehicles are more hazardous for those on the outside. Cyclists and pedestrians may be doing their bit for the environment, but they are putting themselves at risk in streetscapes designed for cars. More needs to be done to facilitate such green transport methods if we are to emulate the models set by our European neighbours.  

London: The Police Foundation, 2022. 51p.