Skip to main content

Caltrans reflects latest safety policy

After recent studies, California DoT is reviewing its highway design standards
By David Arminas August 7, 2020 Read time: 1 min
Caltrans has installed two-way reflective markers to prevent potentially fatal mistakes (image credit: Caltrans)

Recent pilot programmes by California’s Department of Transportation - Caltrans – and a university research centre highlight effective measures that have been taken on board by the US state.

The pilot was developed following 10 wrong-way driver related collisions on freeways around the cities of Sacramento and San Diego in the first six months of 2015.

Caltrans engaged the University of California’s Davis Advanced Highway Maintenance and Construction Technology (AHMCT) Research Center to gather data on the rare but often deadly wrong-way driving collisions.
 
One of the prevention measures included in the three-year pilot programme was reflectors that alert drivers who are entering the roadway in the wrong direction - leading to a 44% drop in such offences in San Diego.
 
“Adding the two-way reflective markers proved to be so effective that Caltrans updated its state-wide design standards,” said Toks Omishakin, Caltrans director. 

During the study, Caltrans installed and tested different ways to deter wrong-way drivers along exit ramps in San Diego as well as the city of Sacramento.

There will be more on this story in the North America edition of ITS International September/October 2020 

For more information on companies in this article

Related Content

  • Dignity should be key measure of MaaS success
    December 4, 2020
    Money isn’t everything: what if we made dignity into the key measure of success for MaaS? Crissy Ditmore sets out her vision statement for the industry’s developers
  • Meeting the challenges of smartcard fare payment
    July 4, 2012
    David Crawford monitors a growing trend in contactless smartcard ticketing The north east United States has become a hive of activity in the smart fare payment arena. In October 2011, the New York Metropolitan Transportation Authority (MTA) published, as a preliminary to an imminent procurement process, the detailed concept of its New Fare Payment System (NFPS). Based on open payment industry standards, this is designed to be implemented on all MTA bus and subway services operated by New York City Transit (
  • Moxa provides clear vision for Caldecott Tunnel’s Fourth Bore
    September 15, 2014
    Caldecott Tunnel’s new Fourth Bore is utilising a bespoke high-capacity monitoring and communications network from Moxa. The Caldecott Tunnel connects Contra Costa and Alameda counties in Northern California and traditionally it has suffered severe congestion - especially during peak hours. Opened in 1937 as a twin-bore arrangement, by 1964 the increase in traffic volumes led to a third bore being added. Shortly after the third bore was opened a tidal flow was introduced with the centre bore alternating in
  • Varying acceptance of tolling in Africa
    January 6, 2016
    Tolling technology is now at an advanced state but governments have a key role in ensuring the success of schemes as is evident in Africa. Shem Oirere reports. According to the African Development Bank, the continent has an estimated $46bn of infrastructure financing deficit. The bank says sub-Saharan Africa requires $93bn annually to meet its infrastructure development needs - but only half of the financing is available.