Roads

Welcome to the Roads Channel, a special feature that provides the user an in-depth look at the road industry. This section offers several areas to explore: product spotlights, article archives, related case studies, related video and product/supplier contact list.

Article December 28, 2000
The Superpave system. We hear it mentioned at meetings, we read about it in magazines and newsletters, and we discuss it in the office. Yet what's the bottom line? Where are we right now in the transition to this performance-based asphalt mix design system? This month's column will provide a brief...
Article December 28, 2000
What are some of the upcoming hot button issues facing our industry? For some reason, our industry does not seem to have a glamorous image. When you ask a kid what he or she wants to be when they grow up, you hear doctor, nurse, fireman or cop. But you seldom hear a kid saying, "I wanna be a road...
Article December 28, 2000
The process of inventorying and prioritizing the City of Columbus, Ohio's stormwater capital improvement projects was a comprehensive undertaking. The process was designed in order to minimize subjective factors and to result in a rational, equitable and consistent method for prioritizing these...
Article December 28, 2000
There have always been "Not in My Back Yard" activists. And, with cities spreading relentlessly into the surrounding countryside, there are more back yards all the time. What once was open countryside is becoming prime commercial and residential property. Industrial areas are evolving into suburban...
Article December 28, 2000
Frequently, I am asked the difference between "design" specifications and "performance" specificationsFrequently, I am asked the difference between "design" specifications and "performance" specifications. This distinction is important because the owner generally warrants the adequacy of design...
Article December 28, 2000
In 1673, two French explorers, Louis Jolliet and Père Jacques Marquette paddled their canoes down the St. Lawrence River in search of a water route to the Mississippi River. The economy of the French colonies in America was driven by the fur trade; a trade that remained largely untapped. If the...
Article December 28, 2000
Double-drum rollers Compaction America Inc., Kewanee, Ill., offers the Hypac C766C vibratory double-drum compactor, designed with a computer control system that includes a microprocessor display keeping the machine's performance in clear view of the operator. The microprocessor provides consistency...
Article December 28, 2000
Using a temporary sewage bypass pumping system and its nondisruptive pipe rehabilitation methods, Insituform Technologies, Inc., has rehabilitated a half-mile-long section of trunk sewer buried beneath a Tucson roadway.The line’s location under Grant Road, a major east-west artery through the city...
Article December 28, 2000
Open-graded friction course (OGFC) mixes have been around longer than many contractors or department of transportation officials may recall. As early as the 1930, Oregon was using a type of OGFC; by the 1940s, many other Western states had employed similar types of friction coats. In the 1970s,...
Article December 28, 2000
Since the mid- 1970s, tens of millions of tons of RAP have been used to produce recycled HMA that has the same performance characteristics as HMA made with all virgin materials. Substantial savings have been achieved by using RAP in mixes. The use of RAP has evolved into an everyday occurrence in...
Article December 28, 2000
The city of Des Moines has implemented new asphalt technology on two of its city streets over the past two years. The 1995 construction of east 29th Street was the first project in Iowa to utilize both Superpave binder and mix design. The 1996 construction of Douglas Avenue was an overlay project,...
Article December 28, 2000
If they had wings they could fly. The airport was there, and at times the speed was certainly worthy of a takeoff. But for hundreds of truck drivers, supervisors, operators and flagmen conducting the largest continuous one-day concrete pour in American history at Detroit Metro Airport, the whole...
Article December 28, 2000
In the first large-scale application of its kind, the City of Fillmore, in Ventura County, California, expanded its treated wastewater disposal capacity by installing subsurface percolation, a simple yet innovative approach that has been shown to be cost-effective and environmentally sound. The...
Article December 28, 2000
A number of state highway departments have begun using the Superpave method to design their hot-mix asphalt (HMA) mixtures. In most cases, these mixtures have been able to be produced, placed, and compacted without significant problems. The mixtures are relatively stiff and stable under the...
Article December 28, 2000
Chicago and its surrounding 51 communities cover an area of 375 square miles and have a population of over 3,000,000 people. This metropolis is served by a combined sewer network carrying both raw sewage and stormwater in a single pipe. Since a majority of the natural porous ground surfaces has...
Article December 28, 2000
Maryland, like most other states, has certain intersections that are prone to rutting. The reasons may differ from one intersection to another-one may have heavy truck traffic; another may be located at the base of a hill-but the result is always the same: Rutted roads that slow traffic and require...
Article December 28, 2000
Last spring, the Utah DOT (UDOT) and contractor Wasatch Constructors embarked on an odyssey indicative of the spirit that first brought pioneers into the region 150 years ago. The partnership now known as the "I-15 team" is endeavoring to rebuild a 17-mile stretch of I-15 that runs through the...
Article December 28, 2000
  Editor’s Note: The first part of this article traced water resources development, its quality and the demand in Grand Turk. It appeared in the March issue. The first priority of any water management policy is to ensure that the population has an adequate and safe water supply for basic needs and...
Article December 28, 2000
As part of the Federal Highway Administration's High Performance Concrete Pavement (HPCP) program, KDOT and Wittwer developed the innovative, practical testing ground for new, rigid pavement technologies, designs, and methods. From mid-September through October1997, the project team...
Article December 28, 2000
"Out with the old, in with the new." Often that’s the approach when upgrading technology. But a total system replacement is an expensive proposition – especially when some elements still may be working well. The city of Rome, Georgia, faced this dilemma when they needed to upgrade an existing...
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