Bay Bridge - Explore the Science & Experts | ideXlab

Scan Science and Technology

Contact Leading Edge Experts & Companies

Bay Bridge

The Experts below are selected from a list of 4584 Experts worldwide ranked by ideXlab platform

Karen Trapenberg Frick – One of the best experts on this subject based on the ideXlab platform.

  • Bay Bridge Toll Evaluation
    , 2012
    Co-Authors: Elizabeth Deakin, Karen Trapenberg Frick, Robert Cervero, Alexander Skabardonis, Ian Barnes, Karla Kingsley, James Rubin, Jin Murakami, Javier Amaro, Erik Jensen

    Abstract:

    A year-long study evaluated the short-term effects of toll increases on the San Francisco-Oakland Bay Bridge. Six of the seven state-owned Bridges in the San Francisco Bay Area saw increases in their flat tolls while a more complex, variable toll was implemented on the Bay Bridge, one of the few examples of peak‐load pricing of a busy highway corridor in the U.S. today. Traffic volumes decreased by 1% and carpool traffic decreased 26%. Improvements were noted in travel times. Models indicate that the imposition of a high occupancy vehicle toll was responsible for over half the reduction in peak period usage in the carpool lanes, but other factors such as gas price hikes, unemployment levels, and the availability of competitive transit services also contributed to the carpool decline.

  • impact of peak and off peak tolls on traffic in san francisco oakland Bay Bridge corridor in california
    Transportation Research Record, 2012
    Co-Authors: Ian Barnes, Karen Trapenberg Frick, Elizabeth Deakin, Alexander Skabardonis

    Abstract:

    The San Francisco-Oakland Bay Bridge is located in the heart of the San Francisco Bay Area in California and connects two of the largest cities in northern California over San Francisco Bay. In July 2010, the Bay Area Toll Authority (BATA) increased tolls on the San Francisco-Oakland Bay Bridge from a flat toll collected westbound only to week-day peak and off-peak tolls. BATA also instituted a carpool toll of $2.50 (previously carpools crossed for free) payable by FasTrak electronic toll collection tag only. With floating-car data provided by BATA, the change in travel time for the I-80, I-580, and I-880 approaches was computed by payment type (cash, FasTrak, and high-occupancy vehicle access lanes) and hour. Travel times were found to have been reduced by 0 to 16 min for cash customers (varying by time of day and approach), with varying results for FasTrak customers and little change for high-occupancy vehicle customers. Data collected by BATA at the toll plaza were analyzed by hour and payment type. Th…

  • Bay Bridge congestion-pricing project : Lessons learned to date
    Transportation Research Record, 1996
    Co-Authors: Karen Trapenberg Frick, Steve Heminger, Hank Dittmar

    Abstract:

    The San Francisco-Oakland Bay Bridge, connecting San Francisco and the East Bay, is one of the most heavily traveled corridors in the nation. In an effort to address traffic congestion in this corridor, the Bay Area Congestion Pricing Task Force—a group of business, environment, public interest, and government organizations—has been examining the viability of variable tolls on the Bay Bridge. Tolls would be higher during peak commute hours when demand is highest and lower in off-peak hours when the Bridge has excess capacity. This supply-and-demand-based concept is known as congestion pricing. The federally sponsored planning phase of the Bay Bridge congestion-pricing demonstration program commenced in the fall of 1993. Its purpose was to determine the most feasible alternatives for reducing congestion on the San Francisco-Oakland Bay Bridge through implementing a congestion-pricing program. The process by which the task force developed a congestion-pricing proposal for the Bay Bridge is described, as are…

Marwan Nader – One of the best experts on this subject based on the ideXlab platform.

  • Design of the New San Francisco – Oakland Bay Bridge Self-Anchored Suspension Span
    Geotechnical special publication, 2004
    Co-Authors: Marwan Nader, Rafael Manzanarez, Man-chung Tang

    Abstract:

    This paper is part of a series of papers covering various aspects of the new East Span of the San Francisco-Oakland Bay Bridge. It will focus on the design of the self-anchored suspension span.

  • design of the new san francisco oakland Bay Bridge self anchored suspension span
    Geotechnical special publication, 2004
    Co-Authors: Marwan Nader, Rafael Manzanarez, Man-chung Tang

    Abstract:

    This paper is part of a series of papers covering various aspects of the new East Span of the San Francisco-Oakland Bay Bridge. It will focus on the design of the self-anchored suspension span.

  • suspension cable design of the new san francisco oakland Bay Bridge
    Journal of Bridge Engineering, 2004
    Co-Authors: John Sun, Rafael Manzanarez, Marwan Nader

    Abstract:

    Various factors contribute to the difficulty in designing the main suspension cable for the new San Francisco–Oakland Bay Bridge Self-Anchored Suspension Span (or East Bay Bridge Suspension Span). The key factors are Bridge design life, cable geometry, cable anchorage layout, cable construction method, and cable corrosion protection system. This paper describes the unique main suspension cable geometry layout for the East Bay Bridge Suspension Span, reviews the available technologies for each of the aforementioned design considerations, and presents the final cable design recommendations.

Alexander Skabardonis – One of the best experts on this subject based on the ideXlab platform.

  • Bay Bridge Toll Evaluation
    , 2012
    Co-Authors: Elizabeth Deakin, Karen Trapenberg Frick, Robert Cervero, Alexander Skabardonis, Ian Barnes, Karla Kingsley, James Rubin, Jin Murakami, Javier Amaro, Erik Jensen

    Abstract:

    A year-long study evaluated the short-term effects of toll increases on the San Francisco-Oakland Bay Bridge. Six of the seven state-owned Bridges in the San Francisco Bay Area saw increases in their flat tolls while a more complex, variable toll was implemented on the Bay Bridge, one of the few examples of peak‐load pricing of a busy highway corridor in the U.S. today. Traffic volumes decreased by 1% and carpool traffic decreased 26%. Improvements were noted in travel times. Models indicate that the imposition of a high occupancy vehicle toll was responsible for over half the reduction in peak period usage in the carpool lanes, but other factors such as gas price hikes, unemployment levels, and the availability of competitive transit services also contributed to the carpool decline.

  • impact of peak and off peak tolls on traffic in san francisco oakland Bay Bridge corridor in california
    Transportation Research Record, 2012
    Co-Authors: Ian Barnes, Karen Trapenberg Frick, Elizabeth Deakin, Alexander Skabardonis

    Abstract:

    The San Francisco-Oakland Bay Bridge is located in the heart of the San Francisco Bay Area in California and connects two of the largest cities in northern California over San Francisco Bay. In July 2010, the Bay Area Toll Authority (BATA) increased tolls on the San Francisco-Oakland Bay Bridge from a flat toll collected westbound only to week-day peak and off-peak tolls. BATA also instituted a carpool toll of $2.50 (previously carpools crossed for free) payable by FasTrak electronic toll collection tag only. With floating-car data provided by BATA, the change in travel time for the I-80, I-580, and I-880 approaches was computed by payment type (cash, FasTrak, and high-occupancy vehicle access lanes) and hour. Travel times were found to have been reduced by 0 to 16 min for cash customers (varying by time of day and approach), with varying results for FasTrak customers and little change for high-occupancy vehicle customers. Data collected by BATA at the toll plaza were analyzed by hour and payment type. Th…