Infrastructure protection

  • InfrastructureLos Angeles revises rule requiring flat rooftops for skyscrapers

    For more than forty years, the building code in Los Angeles required skyscrapers to have flat roofs in order to facilitate helicopter landing in cases of emergency. Now, however, with newer technological advances and techniques that enable Angelinos to be safe during an emergency, the flat-roof code is seen as outdated, and it was changed on Monday. Instead of helicopter pads, skyscraper designers will now focus on other safety features, including special elevators for fire fighters, special exit stairwells, advanced sprinkler systems, and video surveillance technologies.

  • EarthquakesL.A. considering first responses to the inevitable Big One

    Often referred to as the “Big One,” the inevitable cataclysmic earthquake that will eventually strike at the San Andreas Fault throughout the city of Los Angeles is expected to be incredibly destructive. According to seismologists, it is no longer a question of “if,” but more just “when.” Preparedness experts identify several key parts of the greater Los Angeles infrastructure that will need to have firm response plans in place to deal with the fallout of a major disaster, specifically transportation and communication —– the two things needed to coordinate and react to everything else.

  • DisastersStorm-surge app improves public and administration responses to flooding

    An environmental group called Wetlands Watch in Virginia has integrated crowd-sourcing into the Sea Level Rise app, allowing users to issue and receive alerts in real-time regarding waterlogged streets and improve public safety.The newest evolution of the app is expected to be launched within the next few weeks and the information provided and distributed to users will also be tracked by scientists and emergency planners to better grasp the flood patterns in the region and how to prepare for them.

  • Coastal infrastructureRisks grow as Americans continue to build on eroding coast

    More than two million housing units have been built along the nation’s coast within the last twenty years, and as the American economy recovers after years of recession, development along the U.S. coastline is steadily increasing. Scientists warn, however, that building along coastlines could put life and property at risk due to erosion, rising sea levels, and storm damage.

  • Port securityBetter regional coordination for port security

    In the days following the 9/11 terrorist attacks, first responders in the Northeast were suddenly responsible for monitoring potential targets, including a military base, nuclear power plants, and a deep water port. Emergency teams soon found out that they were ill-equipped to coordinate with one another. That realization prompted better organization among regional first responders.

  • DisastersSouth Carolina reflects on Hurricane Hugo anniversary

    The state of South Caroline has just eyed the twenty-fifth anniversary of Hurricane Hugo – the Category 4 storm that hit the coast on 21 September 1989 with sustained maximum winds of 138 mph. Many in the state still honor that event, and live with the memory of the severe coastal damage due to drastic storm surges and the forty-nine lives lost during the disaster. The storm also left 60,000 people homeless, with 270,000 temporarily unemployed and 54,000 residents seeking monetary assistance. Extending far beyond that were many others who did not have power for two weeks or longer.

  • Infrastructure protectionProtecting the electric grid, communication systems from solar storms

    Considered the strongest solar storm on record, the 1859 Carrington Event disrupted telegraph operators and crippled communications systems. Today, even mild scale eruptions could disrupt communications technology and power grids, as bursts known as coronal mass ejections cause vibrations in the Earth’s magnetic field. According to NASA, those vibrations cause electric currents that can overwhelm circuitry and lead to prolong shutdowns. Solar researchers are working to develop monitors that can predict which solar storms can disrupt electric grids and global communications systems.

  • Coastal infrastructureNSF awards $15 million in second round of coastal sustainability grants

    More than half the world’s human population lived in coastal areas in the year 2000; that number is expected to rise to 75 percent by 2025. If current population trends continue, projections are for the crowded U.S. coast to see its population grow from 123 million people to nearly 134 million people by 2020. In wake of storms such as Hurricanes Sandy and Isaac, the NSF awards focus on better management of coastal environments.

  • ResilienceTen years after Hurricane Ivan, Alabama communities are better prepared

    Since Hurricane Ivan struck Baldwin County, Alabama and neighboring communities ten years ago, building officials have adopted better resilience protocols to protect human life and property from future storms. Ivan, which left an estimated $14.2 billion in damages throughout the Gulf Coast, is considered the worst storm to hit Alabama in twenty-five years, and the seventh most costly hurricane ever to affect the United States.

  • Seismic safetySF posting seismic warning posters on vulnerable buildings in a retrofitting drive

    In an effort to get property owners to retrofit vulnerable buildings, San Francisco is posting large signs — in English, Spanish, and Chinese, with red letters, and a drawing of a collapsed building — on apartment and hotel complexes that have failed to comply with the city’s seismic safety laws.The San Francisco tactic is similar to what city officials in Berkeley implemented in 2005, when building authorities placed small warning signs on at-risk wooden apartment buildings.

  • EarthquakesSimulating the ground motion of the south Napa earthquake

    Lawrence Livermore National Laboratory (LLNL) seismologists are tapping into LLNL’s supercomputers to simulate the detailed ground motion of last month’s magnitude 6.0 south Napa earthquake. The Napa tremor is the largest to hit the Bay Area since the magnitude 6.9 Loma Prieta event in 1989. Seismic simulations allow scientists better to understand the distribution of shaking and damage that can accompany earthquakes, including possible future “scenario” earthquakes.

  • Earthquake early warningSilicon Valley tech startups developing earthquake early warning mobile apps

    Silicon Valley tech startups are developing mobile applications to alert residents about earthquakes, but most lack a direct source to the seismic sensors deployed by the state’s ShakeAlertsystem which sends alerts seconds before the ground begins to shake.Googleis currently the only tech company with an agreement to access ShakeAlert’s data feed, and analysts anticipate that Google will integrate ShakeAlert’s system with its Nestthermostat, a Web-connected thermostat that sends alerts to users’ phone and e-mail with details on home temperature and energy use.

  • DisastersTornadoes occurring earlier in Tornado Alley

    About 1,300 tornadoes hit the United States every year, killing an average of sixty people. Peak tornado activity in the central and southern Great Plains of the United States is occurring up to two weeks earlier than it did half a century ago, according to a new study whose findings could help states in “Tornado Alley” better prepare for these violent storms.

  • Infrastructure protectionCities seek new ways to cope with sea level rise – and look to the Dutch for advice

    Scientists predict a “tenfold increase” in the frequency of hurricanes and other storms, as well as sea-level rise of eleven to twenty-four inches within a little more than three decades – and planners and managers in U.S. coastal cities are looking at new ways to prepare their cities’ infrastructure for these challenges. In New York and New Orleans, city planners are studying the experience of the Dutch, who have gained a lot of experience – and fame — for their water control methods.

  • Coastal infrastructureRural towns lose to urban centers in competition for coastal protection funding

    Infrastructure protection planners say there are only three ways coastal communities can defend themselves against rising sea levels: defend the shoreline with both natural and man-made barriers; raise key infrastructure such as buildings and roads; or retreat from the shoreline. Each of these options costs a fortune to follow. Smaller, more rural coastal communities in many states are finding that they are having a hard time competing with more powerful interests in coastal urban cities over funding for protection against sea-level rise.