The Shape of Things to Come
High-performance steel (HPS) offers improved toughness and durability for bridge construction. This article presents several innovative concepts for HPS structural systems�including I-girders...
Box Girder Balancing Act
On November 18, 1999, cranes lowered into place the last of 202 precast concrete segments that form the main span of the new Sagadahoc Bridge, a $46.6 million crossing that boasts the...
Sum of the Parts
As with all of the bay bridges that serve as life lines to the San Francisco peninsula, the 32-year-old San Mateo Bridge needs strengthening to withstand a maximum credible earthquake...
Protecting Your Work: Balancing the Competing Interests of Ownership
Your firm has invested days, months�perhaps even years�in its latest project. Your staff have poured their thoughts, ideas, and insights into the creation of a bridge, building, overpass,...
New Bern Bypass
To alleviate congestion and offer tourists easier access to their destinations, the North Carolina Department of Transportation decided to reroute U.S. Route 17 out of the historic town...
Fast-Track Funding
The South Carolina Department of Transportation has implemented one of the most innovative highway and bridge construction programs in the United States. With creative financing and contracting,...
The Berlin Local Transport Company (BVG): A Part of Berlin
Public transport was in existence in Berlin for more than 150 years. Buses, trams, and underground trains were combined in a single company, whose initials BVG became part of Berlin. As...
Urban Public Transportation in Chennai and Its Operations and Use by People
The main problem in the city was the decreasing share of mass transit trips by rail. The planners desire that the public transport trips should be 60%. It also desired that in Chennai,...
Chicago's Urban Public Transportation System: Its Operations and Use by People
The Chicago Transit Authority (CTA) faces a number of challenges of all kinds in its attempts to gain and keep riders. But most important is finding ways to serve and satisfy its customers....
Hong Kong's Public Transport System: Harmonizing Choice, Diversity and Urban Integration
The benefits of integrating railways with land use planning and active urban development and why this is rather successfully achieved in Hong Kong are discussed. The people of Hong Kong...
The Transportation System for the New Hong Kong International Airport
The decision by the Hong Kong Government in 1989 to relocate the city airport at Kai Tak had resulted in the largest infrastructure project ever undertaken in Hong Kong in recent times....
Existing Urban Public Transportation System and Its Operations and Usage
In Osaka City, a new urban center was developed in the waterfront area to decentralize the excessively concentrated business activities. In order to connect the newly developed center...
Urban Public Transportation of Singapore
Singapore is a city state with a land area of 648 sq km and a population of 3.8 million. The total daily trips generated is about 7 million. Of these, around 5 million trips are on public...
Urban Public Transportation and Operations in Mexico City
Inhabitants of the Mexico City Metropolitan Area (MCMA) are served by several modes of transportation. In particular, transit vehicles include short units known as minibuses, buses, trolleybuses,...
Re-Creating the Rainbow Bridge
A team of American and Chinese experts constructed a pier-free arch bridge in China based only on a 12th century...
High-Performance Hybrid
The Nebraska Department of Roads is taking advantage of the new high-performance steel (HPS) to develop a modular, two-girder bridge that will employ standardized hybrid HPS components,...
Suspension Solution
The new bridge across the Carquinez Strait near San Francisco, California, will upgrade an important transportation link across the Sacramento River. This new bridge, which renders the...
Digging for Answers (Available in Geoenvironmental Engineering Special Issue only)
Research at the six facilities that make up the National Geotechnical Experimentation Sites (NGES) has included tests on minipiles, groups of driven piles, shafts drilled in rock, and...
A New Skew
Most bridges that cross roadways or other elements at a skewed angle are designed based on right-angle crossings with inefficient modifications. A new concept for skewed crossings is a...
Taking a New Approach (available in Structural Engineering Special Section only)
The first bridge rehabilitation project in Washington, DC to use the AASHTO Load and Resistant Factor Design (LRFD) specification reveals several lessons to be learned from using the newly...
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