News

WhitePapers
According to the Research and Innovation Technology Administration (RITA), United States Bureau of Transportation Statistics, the number of registered motor vehicles in 2010 was over 250 million, up from 226 million just ten years earlier. This steady increase of vehicle ownership, coupled with...
WhitePapers
Business success requires producing a quality product while maintaining a strong bottom line. Many businesses rely on proven, cost-saving and waste-reducing practices, and road-sign manufacturing is no exception. Standards for “rotationally sensitive” materials or materials whose reflective...
Safety Case Studies
The success of Interstate Safety Service Inc. relies heavily on its ability to efficiently load, transport, unload and place concrete highway barriers—often called Jersey barriers.   Interstate manufactures barriers in several sizes at its location in Clarks Summit, Pa., north of Pittsburgh. The...
Asphalt Case Studies
With its current park-and-ride facilities operating beyond capacity, Intercity Transit of Lacey, Wash., decided to make effective use of public land by developing a new park-and-ride facility atop a retired landfill.   A feasibility study conducted in 2008 confirmed that differential settlement...
Traffic engineering software
Traffic Engineering Software Case Studies
In the early years of Transoft Solutions, the city of Vancouver was one of the first municipalities to purchase licenses of AutoTURN. Since then, both Vancouver and Transoft have grown, and the demands on the local transportation system have grown as well.   There is a never-ending tug-of-war...
Temporary rumble strip
Traffic Control Products Case Studies
To reduce crashes, Kentucky Transportation Cabinet (KTC) engineers in District 8 recently installed RoadQuake 2 Temporary Rumble Strip arrays near Albany, Ky.   Albany is located in the southern part of the state, about 6 miles north of the Tennessee border. It is about 120 miles south of Lexington...
Case Studies
After 70 years of continuous vehicle traffic between Portland and the Oregon coast on Highway 26, the 772-ft Dennis Edward Tunnel was in need of a significant structural restoration. However, renovating the tunnel could not interfere with the daily commute of thousands and had to be complete before...
Bridges Case Studies
Designed by renowned civil engineer Othmar Ammann and constructed by American Bridge Co., the Walt Whitman Bridge was first opened to traffic in 1957 and utilized a concrete-filled steel grid deck. The seven-lane 3,540-ft-long suspension bridge is owned and operated by the Delaware River Port...
Temporary rumble strip
Traffic Control Products Case Studies
The Utah Department of Transportation (DOT) recently conducted a live test of PSS rumble strips on I-70 near Green River. This location was selected because of high average daily traffic (ADT) and drivers’ speeds. While the posted speed limit is 75 mph, drivers often exceeded the speed limit....
Traffic management software
Traffic Engineering Software Case Studies
If you want to be a transportation engineer in Southern California, your chances improve dramatically when you have Xudong Jia as your professor. At California State Polytechnic University, Pomona (Cal Poly Pomona), Jia teaches in the Civil Engineering Department with classes of students who want...
Ice Control Case Studies
A premier outdoor recreation destination, the Colorado Rocky Mountains can unleash dangerous winter snowstorms, below-freezing temps and warm, wintertime sunshine—all within the same day. Municipalities like the city of Fort Collins, which rests against the foothills, often have their hands full...
Asphalt Case Studies
Contractors that handle the big jobs—airports and interstates in particular—have more needs from a paver than they can count. But the exceptional contractors, a list that includes Intercounty Paving Associates in Hicksville, N.Y., always remember the basics.   “The jobs we work have tight deadlines...
WhitePapers
The objective of this study is to determine the inlet design coefficient for the Snap-Tite Hydro-Bell. The inlet design coefficient is necessary to accurately predict head loss, or flow, through a high-density polyethylene (HDPE) Snap-Tite Culvert Relining pipe using the Hydro-Bell in submerged...
Case Studies
Creating a 21-mile-long park system linking four major parks is no small task. But that’s just what 21st Century Parks set out to do in the Louisville area. Linking the parks required construction of several new roadways, and the significant grade changes on-site required extensive retaining walls...
Safety Products
SafetyWall ADA-Compliant Pedestrian Barricade provides continuous, obstacle-free guidance through pedestrian work zones. SafetyWall creates accessible, detectable pedestrian routes for those with limited vision. As sidewalk closure, or longitudinal channelizing device, SafetyWall provides the same...
Ice Control Case Studies
In the last few years, Jim Decker, public works director at the Stroud Township Municipal Center in Pennsylvania, has not seen much snowfall.   While less snowfall may sound like a blessing for winter roadways, less snow means more ice and sleet—conditions that make it more difficult to keep roads...
Traffic management software
Transportation Management Case Studies
Hosting the 2016 Olympic Games and the World Cup of Soccer in 2014 means Brazil definitely has some wind in its sails. And what better to harness that wind than a forest of wind farms?   Located in Natal, Rio Grande do Norte, the consulting engineering firm of Próxima Engenharia has its offices on...
Storm Water Case Studies
More than 100 tributaries run through the southwest U.S. and drain into the 1,450-mile-long Colorado River. Corroded metal culverts designed to prevent flooding on roads crisscrossed by those streams are frequently the cause of it. For Colorado county road crews, flooding and washout caused by...
Maintenance Case Studies
Coventry Township, located not far from Akron, Ohio, includes the Portage Lakes area—a system of reservoirs connected by a series of channels that were created in the mid-1800s to maintain water depth in shipping canals. Today, Portage Lakes is a resort area, with some 4,000 upscale homes dotting...
Rumble strips
Transportation Management Case Studies
Plastic Safety Systems recently had the opportunity to provide RoadQuake 2 temporary portable rumble strips for an Ohio DOT job in Licking County. Project 98 (2013) was a “mill-and-fill” resurface job on Ohio Rte. 16 between Reynoldsburg and Granville. The job was completed at the end of July.  ...
Overlay Init