News

tolling
Tolling News January 04, 2018
The Oregon Department of Transportation (ODOT) has issued a request for proposal to help the agency research open system tolling.   The 2017 Oregon Legislature directed ODOT to relieve congestion and generate revenue through tolling on I-5 and I-205 in the Portland Metro area.   ODOT is interested...
Las Vegas Boulevard / S.R. 604

Image: NDOT

Road Construction News January 04, 2018
The Nevada Department of Transportation (NDOT) recently completed a $17.3 million upgrade of Las Vegas Boulevard (S.R. 604) from Carey Avenue to just north of Craig Road in north Las Vegas.   Aggregate Industries was the general contractor on the project, with AECOM as project manager. The 4.6-mile...
bridge
Road Construction Article January 03, 2018
Most department of transportation buildings do not have a door marked PRIVATE.   Since one figuratively does not exist, either because there is no interest in working with the private sector or it is simply not feasible, it is hard to see how President Trump’s proposed $1 trillion infrastructure...
Bill Wilson
Editorial/Commentary Article January 03, 2018
I made calls from a pay phone, but the change did not come from the seat cracks of my Swagger Wagon.   That would have been a feat, but still would not have impressed my 12-year-old son. I always tell him how rough I had it as a child, like the fact seatbelts were optional and every once in a while...
I-11 rebar

Crews construct rebar fittings on the $83 million first phase of the new I-11 reconstruction.

Road Construction Article January 03, 2018
A long-awaited stretch of new interstate is finally taking shape in southern Nevada, after years of heated debate, planning and controversy.   The future I-11 will eventually connect Las Vegas and Phoenix, the country’s two largest metropolitan communities currently not linked by an interstate...
Thin concrete
Concrete Article January 03, 2018
As a durable, economical and low-maintenance concrete material, roller-compacted concrete (RCC) is steadily becoming the choice for many pavement applications. And researchers in Louisiana are testing just how thin those applications can go.   Traditionally, RCC pavements have been built with an 8...
Concrete curling
Concrete Article January 03, 2018
Today’s modern concrete construction technologies and experienced personnel provide an opportunity to construct the smoothest concrete pavements and slabs in history.   Smooth pavements and slabs are in high demand because they reduce cracking, improve ride quality, reduce noise and improve fuel...
St. Croix
Bridge Construction Article January 03, 2018
Designated a National Scenic Riverway, the Saint Croix River carves out a deep valley, gliding and rushing through a lush green landscape surrounded by wooded bluffs and historic towns until its confluence with the Mississippi River.   About a half hour from the Twin Cities of Minneapolis and St....
work-zone lighting
Safety Article January 03, 2018
In 2016, there were over 288 nighttime crashes in work zones, resulting in over 800 fatalities.   Increasing traffic volumes are leading to a rapid increase in nighttime construction activities on our roads. This increase in nighttime construction on highways poses a major safety concern for both...
FDOT survey vehicle
Safety Article January 03, 2018
Collecting pavement condition and performance data is an essential element of transportation asset management.   Departments of transportation (DOTs) are responsible for driving hundreds of thousands of miles each year for such data collection, using both full-sized survey vehicles that run at...
Kernel Density Map

Figure 1. A Kernel Density Map of predicted counts of pedestrian collisions with a 250-m kernel buffer in downtown Seattle. (Adapted from Accident Analysis and Prevention, 5, 84:99-111.)

Traffic Safety Article January 03, 2018
Data on traffic collisions involving pedestrians are now routinely available, which, combined with detailed data on road and street networks, facilitate the estimation of models that explain the conditions and circumstances leading to collisions.   Our past research, together with that of others in...
Larry Caudle
Law Article January 03, 2018
In most states, courts have ruled that a contractor who agrees to perform work for a lump sum will not be entitled to additional compensation due to unforeseen difficulties. Consequently, absent a specific contract provision to the contrary, a contractor is generally responsible for absorbing costs...
David Matthews
Roads Report Article January 03, 2018
Changing lanes Nothing ruins a perfectly good morning quite like a traffic jam. They’re frustrating and stressful, and studies show that over time, they can even take a toll on your health.     Most commuters accept congestion as a fact of urban living, but one man in China decided to take action...
Public transit
Road Traffic Safety News January 03, 2018
The Virginia Department of Rail and Public Transportation (DRPT) announced the cooperative statewide procurement of Mobileye Shield+ Driver Assistance System (DAS) technology for all public transportation providers in Virginia.   As part of a $450,000 pilot program, DRPT is also providing funding...
driverless shuttle
Automated Vehicles News January 02, 2018
The nation’s first driverless shuttle for public use will be picking up passengers and driving along a short loop in Las Vegas when the Consumer Electronics Show (CES) comes to the city next week.   The autonomous vehicle, which launched in November, is limited to eight passengers as it travels...
Scudder Falls Bridge

Image: Delaware River Joint Toll Bridge Commission via Courier Times

Bridge Construction News January 02, 2018
Work is progressing on several different fronts on the Scudder Falls Bridge improvement project over the Delaware River.   After several years of delay, work on the $500 million bridge that connects New Jersey to Pennsylvania appears to be moving full speed ahead toward a completion date in mid to...
Software Routing and Logistics Case Studies December 29, 2017
The Motor Carrier Division of the Maryland State Highway Administration (MDSHA) issues up to 150,000 oversize/overweight (OS/OW) permits per year for travel on more than 10,000 miles of roads, passing over and under approximately 5,200 bridges and underpasses. The permitted routes cross city, state...
PennDOT bridge

Image: PennDOT

Bridge Construction News December 28, 2017
The Pennsylvania Department of Transportation (PennDOT) and its development partner, Plenary Walsh Keystone Partners (PWKP), expect to finish the 2017 construction season with the opening of its 390th bridge this week.   When this multi-year project is completed, PennDOT will have replaced 558...
I-10 California

Image: Garret Larson

Web Exclusive Highway Construction Article December 27, 2017
In 1947, when Interstate 10 (I-10) was built as a four-lane highway from Ontario to San Bernardino, Calif., it passed through a landscape of ranches, orchards, and open fields fringed with trees. Originally this section of roadway was assigned as U.S. 70-99, and in 1957 it was reassigned to become...
Software Materials Management Products December 27, 2017
Ensure your assets are safe, reliable and efficient over their operating life. AssetWise Asset Reliability enables you to develop proactive strategies that improve long-term asset reliability and performance. Optimize processes for the day-to-day operations of assets to minimize operational costs...
Overlay Init