More stories about Acoustics

  • Construction Equipment February 2009

  • Bridge from Tragedy

  • Power of the Pump

    A community pool complex uses variable-frequency drives to save thousands in annual energy costs.

  • Las Vegas hosts international construction exhibition

    As an industry gathering place for the worldwide construction industry, the CONEXPO–CON/AGG construction exposition provides exceptional educational and networking opportunities. The show—which takes place March 11–15 at the Las Vegas Convention Center—includes more than 2000 exhibitors.

  • Products: Signal, sign & traffic management November 2007

    New, and noteworthy products for road signals, signs, and traffic management.

  • Shock therapy

    Corrosion of reinforcing steel in concrete is a dangerous problem--and all too common for the many bridges in Florida's salt-water environments. It induces cracks and spalls, which compromises structural integrity and public safety.

  • Just say ‘no’ to privatization

  • Bridging Controversy and Consensus

    The Maryland State Highway Administration (MSHA) was faced with juggling competing demands in the reconstruction of two bridges feeding into Annapolis, the 350-year-old state capital. It sson became clear that garnering community support had to be the top priority.

  • Gaining Control

    In 2001, overflows cost the Pima County Wastewater Management Department in Arizona more than $600,000. That same year, the department launched a multiyear program to install a supervisory control and data acquisition (SCADA) flow-monitoring system powered in part by the sun and linked by remote...

  • Tough as Rocks

    While riprap offers effective protection against high-flow water events, there are long-term safety issues to consider such as risk of damage and injury to vehicles, passengers, and pedestrians; Turf Reinforcement Mats (TRMs) provide a safer alternative.