Economics and Finance

Crane Double Cycling in Container Ports: Affect on Ship Dwell Time

Goodchild, Anne V.
Daganzo, Carlos F.
2005

Loading ships as they are unloaded (double-cycling) can improve the efficiency of a quay crane and thus container port. This paper describes the double-cycling problem, and presents two solution algorithms and simple formulae to estimate reductions in the number of operations, and operating time. The problem is formulated as a scheduling problem. Small problems can be solved to optimality with a standard numerical solver, but problems of typical size are computationally burdensome and terminated after 10 hours with optimality gaps larger than 50%. A formula for an improved lower bound to...

Bus Operations of Three San Francisco Bay Area Transit Agencies during the First Year of the COVID-19 Pandemic

Kurzhanskiy, Alex, PhD
Lapardhaja, Servet
2021

From March 2020 through March 2021, researchers monitored three San Francisco Bay Area transit agencies: two large – Alameda-Contra Costa Transit District (AC Transit), Valley Transportation Authority (VTA); and one small – Tri Delta Transit. As the lockdown was imposed in response to the COVID-19 pandemic, white-collar commuters, students, and the elderly stopped using public transit. Initially, ridership fell 90 percent, and then over the year slowly climbed to less than 50 percent for AC Transit and VTA, and to around 60 percent for Tri Delta Transit. The pace of recovery was not steady...

Applying Integrated ITS Technologies to Parking Management Systems: A Transit-Based Case Study in the San Francisco Bay Area

Rodier, Caroline J.
Shaheen, Susan A.
Eaken, Amanda M.
2004

California Partners for Advanced Transit and Highways has teamed with the California Department of Transportation, the Bay Area Rapid Transit (BART) District, ParkingCarmaTM, and Quixote Corporation to launch a smart parking research demonstration at the Rockridge BART station in the East San Francisco Bay Area (California, USA). The results of an extensive literature review demonstrate that different smart parking applications implemented worldwide can ease traveler delays, increase transit ridership, and reduce operator costs. Observational analyses at the station indicated that existing...

High Accuracy Location Based Services CostBenefit Study: Final Report

Goodliss, Adam
Manasseh, Christian
Ekambaram, Venkatesan
Sengupta, Raja
Kanafani, Adib
Ramchandran, Kannan
2011

This report presents a benefit and cost study of a Cooperative High‐Accuracy LOcation (C‐HALO) service. A High Accuracy Location service should be ubiquitous and reliable as the GPS constellation. A survey of the literature on location services reveals a body of work on the benefits of a high accuracy location service. Focusing on road travel, benefits are estimated to be between $160-$320 billion dollars over slightly more than 20 years. The benefits arise from smoother traffic flow on the roads leading to reduced travel delays, and fewer accidents leading to reduced injuries and saved...

Local Option Transportation Taxes in the United States (Part Two: "State-by-State Findings")

Goldman, Todd
Corbett, Sam
Wachs, Martin
2001

This study examines the extent to which states have devolved one of the most fundamental decisions in transportation policy—whether to use taxation powers to fund transportation improvements—to local and regional governments. The purpose of the study is to generate a baseline of knowledge on “local option transportation taxes” in all fifty states, including the relevant legislative authority for these taxes, the extent to which local areas have adopted them, and the roles they play within their states’ overall transportation finance frameworks.

Tapping In: Leveraging Open-Loop Fare Payments to Increase Financial Inclusion

Broader, Jacquelyn
2024

In the United States, public transit agencies are increasingly growing interested in deploying open-loop payment systems for public transit fare payments. This interest is based on the benefits these systems can offer, from faster boarding times to the potential of attracting more riders. Open-loop fare payment systems’ popularity is evidenced by the growing number of American public transit agencies who have deployed them; most of whom (63%) are located in California. The overlap between public transit riders who are both transit-dependent and financially excluded (i.e., have no or...

Multivariate Analysis of the Impacts of NAS Investments: A Case Study of a Major Capacity Expansion at Dallas-Fort Worth Airport

Hansen, Mark M.
Wei, Wenbin
1998

This paper presents a case study of how to empirically estimate the impact of a NAS investment on system performance. We employ multivariate statistical analysis to estimate the impacts of a major capacity expansion at DFW airport.

Can Rebates Foster Equity in Congestion Pricing Programs?

Sallee, James M.
Tarduno, Matthew A.
2022

Congestion pricing improves economic efficiency, but it may lead to inequitable outcomes. A key policy priority in California is identifying ways to avoid the hardship of congestion pricing on low income or other vulnerable populations. This study uses data from a congestion pricing experiment in the Seattle metro area to examine the feasibility of using revenue from congestion pricing to compensate those harmed by the policy. Results indicate that the initial burden of congestion pricing is highly inequitable, with the lowest income drivers paying an average of 7 percent of their weekly...

A Dozen Reasons for Raising Gasoline Taxes

Wachs, Martin
2003

Motor fuel taxes at state and federal levels have traditionally been earmarked for transportation investments, supporting road construction, maintenance, and operations, and increasingly public transit. Recently, elected officials have been reluctant to raise fuel taxes despite increases in the cost of transportation programs. Other forms of support, especially borrowing and local sales taxes are playing larger roles in transportation finance. Raising fuel taxes would be more effective, efficient and equitable than the alternatives that are increasingly more popular.

Vehicle Manufacturing Futures in Transportation Life-cycle Assessment

Chester, Mikhail
Horvath, Arpad
2011

Vehicle manufacturing effects are critical life-cycle components in the total costs of vehicle travel and future manufacturing processes should be evaluated for travel forecasts. With efforts to introduce lightweight materials, increased fuel economy, and new technologies such as electric vehicles, understanding the energy and environmental effects of these expected vehicles is critical. Current vehicle manufacturing energy use and greenhouse gas emissions are summarized from existing research for passenger (conventional gasoline vehicles, hybrid electric vehicles, aircraft, high-speed...