On Aug. 22, the Herrenknect tunnel-boring machine completed its work, excavating the 3.3- kilometer-long underwater section of the Eurasia Tunnel in Istanbul.
Related Links: FHWA-AASHTO task force report Court Judgment, Tests Fail To Quell Guardrail Controversy (enr.com 6/15/2015) [subscription] A new study of accidents involving highway guardrails has found shortcomings in several different manufacturers’ W-beam end caps in certain types of crashes. The report, from a Federal Highway Administration and American Association of State Highway and Transportation Officials task force, also calls for fully implementing AASHTO’s 2009 Manual for Assessing Safety Hardware (MASH) guidelines for crash-testing new installations of guardrail terminals. But the report doesn’t recommend new crash tests for existing guardrail equipment under an older set of criteria, contained in National Cooperative
The construction consortium charged with expanding Rio de Janeiro/Galeão–Antonio Carlos Jobim International Airport says it is on schedule to finish on May 1 of next year, in time for the August kickoff of the Rio 2016 Summer Olympics.
In recent years, China has been the go-to builder of Asia's high-speed-rail networks, but Japan is proving a competitive rival in the bidding for several of the region's high-profile projects.
The nation's longest non-vehicular multi-modal bridge, set to open on Sept. 12 across Portland, Ore.'s Willamette River, elevated risk management to a priority early on to help crews overcome unexpected site conditions.
Despite a historic pace for the installation of new railroad signaling and monitoring technologies, U.S. freight and commuter railroads will not meet the Federal Railroad Administration-imposed deadline to equip infrastructure assets with positive train controls (PTCs) by Dec. 31, according to an August report from the agency.
The World Bank estimates that only one-third of the population in sub Saharan Africa living in rural areas is “within two kilometers of an all-season road, compared with two-thirds of the population in other developing regions.
A surge in hydroplane-related wrecks on a recently widened stretch of Interstate 40 has prompted Tennessee Dept. of Transportation officials to meet with representatives of Lane Construction Corp., the design-build contractor, to find a solution.