Pavement Marking

reduced speed limit; urban mobility; traffic safety; pedestrian safety
News March 27, 2019
The Maryland DOT State Highway Administration (MDOT SHA) is reducing speed limits on MD 97 (Georgia Avenue) in Wheaton and Silver Spring, Montgomery County, this week.   The changes are part of MDOT SHA’s bold new comprehensive urban mobility-focused program tailored to central business districts...
Road and bridge construction podcast

Logo Images: Trifonenko Ivan / SkyLine /

News March 01, 2019
In a fully loaded Infrastructure Insider, we go over the recent bridge troubles in Chicago and the Chicagoland area. Associate Editor Tim Bruns talked with the Chicago DOT after bridge cracking was discovered on Lake Shore Drive (5:45). The I-80 bridge in Joliet also is in trouble. We talked to...
S.R. 88 Apache Trail Arizona

Image: Arizona DOT

News June 21, 2018
A road improvement project along 17 miles of S.R. 88 east of Phoenix is expected to be completed by the end of summer, according to Arizona state officials.   The Arizona Department of Transportation (ADOT) said that the $6.5 million project focuses on roads beginning 3 miles east of Apache...
pedestrian safety
News May 14, 2018
A new study from the Insurance Institute for Highway Safety (IIHS) show that pedestrian deaths have jumped 46% since reaching their lowest point in 2009, as pedestrian crashes have become both deadlier and more frequent.   According to the IIHS study, a total of 5,987 pedestrians were killed in...
traffic safety older drivers
News March 14, 2018
A report released by nonprofit transportation research group TRIP finds fatalities in traffic crashes involving drivers 65 years old or older increased 22% from 2012 to 2016.   The number of seniors killed in those crashes increased by 16% nationwide. The TRIP report identified Florida as having...
Copenhagen bikeways

Copenhagen has hundreds of miles of separated bikeways built next to their sidewalks.

Article March 12, 2018
U.S. travelers to many European cities often note the very large number of bicyclists of all ages and abilities. Indeed, bicycles are used for nearly half of urban trips in cities like Amsterdam and Copenhagen. Another notable feature of these cities is their extensive network of infrastructure...
Ill. DOT gets TIGER grant to aid I-57 safety
News March 08, 2018
A federal grant has been awarded to the Illinois Department of Transportation (IDOT) to help to make I-57 safer near the town of Marion.   In a news release from Democratic U.S. Senators Tammy Duckworth and Dick Durbin, it was announced that IDOT was awarded a $7.6 million TIGER grant for...
solar-powered pavement markers

Image: Idaho Transportation Department

News March 02, 2018
The Idaho Transportation Department (ITD) is piloting new wireless technology aimed at shedding some light on the state’s darkest highways with the first 100 of an eventual 700 solar-powered pavement markers.   Last month, state employees installed the patented markers in Pocatello, which measure 4...
Sheepshead Bay Rd after
Article August 08, 2017
A traffic island, more pavement markings and signage (top image) were added to this intersection to ensure safe interactions between vehicles and pedestrians as part of NYC’s Vision Zero plan.   In New York City, the efforts of the New York Department of Transportation (NYCDOT), in partnership...
Federal Highway Administration approval to spur more red transit-only lanes in San Francisco
News July 06, 2017
The San Francisco Municipal Transportation Agency (SFMTA) is looking to add their red transit-only lanes to at least 50 new streets in the region, as newly granted federal approval will now allow the agency’s red lanes to spread to more areas across the city.   A list of “Potential Future Red Lanes...
The Zoo Interchange project is the largest in Wisconsin at $1.7 billion, and bears the state’s most complex work zone.

The Zoo Interchange project is the largest in Wisconsin at $1.7 billion, and bears the state’s most complex work zone.

Article June 05, 2017
Almost 100 years ago, in the fall of 1917, June McCarroll implemented an idea to designate roadway lanes by painting a mile-long white line down the center of a highway in California.   She campaigned for this idea to be employed statewide, and in 1924 the California Highway Commission agreed,...
Developing green bicycle lane treatments to increase visibility and reduce safety risks
Article June 08, 2016
Whether traveling through small towns like Wauwatosa, Wis., or tourist stops like Las Vegas, green lane treatments are increasingly being used to assist motorists in recognizing bicycle lanes.   An effort is underway to improve the quality of these pavement treatments. Once completed, agencies...
Evaluation of pavement markings on challenging surfaces in Minnesota
Article June 08, 2016
Determining the appropriate application of pavement markings is a persistent challenge for departments of transportation.   A team of researchers from the Iowa State University Institute for Transportation recently partnered with the Minnesota Department of Transportation (MnDOT) to conduct a field...
The Visibility Research Laboratory is used to test materials for traffic signs and pavement markings

The Visibility Research Laboratory features a 125-ft-long dark tunnel used to test traffic signs and pavement markings.

News May 02, 2013
When you drive at night and your headlights illuminate a lane marking, it makes you feel safer, right? After all, bright pavement markings are designed to help you stay in your lane and prevent you from running off the roadway.   Called retroreflectivity, special materials in edge lines and lane...
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