Transportation Commons^™

Modeling Decision Making Related To Incident Delays During Hurricane Evacuations, Robert Michael Robinson

Computational Modeling & Simulation Engineering Theses & Dissertations

Successful evacuations from metropolitan areas require optimizing the transportation network, monitoring conditions, and adapting to changes. Evacuation plans seek to maximize the city's ability to evacuate traffic to flee the endangered region, but once an evacuation begins, real time events degrade even the best plans.

To better understand behavioral responses made during a hurricane evacuation, a survey of potential evacuees obtained data on demographics, driving characteristics, and the traffic information considered prior to and during an evacuation. Analysis showed significant levels of correlation between demographic factors (e.g., gender, age, social class, etc.) and self-assessed driver characteristics, but limited correlation with …

Green Ships: Keeping Oceans Blue, Petros J. Katsioloudis

STEMPS Faculty Publications

The article discusses the contribution by the marine transport sector to air and water pollution. According to a congressional research report, cruise ships produce large volume of wastes like sewage, wastewater from sinks, showers, and galleys, hazardous wastes, solid wastes, oily bilge water, ballas water and polluted air. Ship manufacturers are advised to create Green Ships that prevent pollution while governments are urged to strengthen the laws that prohibit dumping of waste to oceans to alleviate pollution.

Decision Support Tools For Bus Rapid Transit Corridor Planning, Luis David Galicia

Open Access Theses & Dissertations

Bus Rapid Transit (BRT) Systems have been gained popularity in the United States and worldwide as a cost-effective solution of mass transit. There are certain elements and characteristics that such a system should accomplish to be considered a BRT. However, a uniform definition, defined phases to be deployed, and a reliable methodology to estimate ridership are not well structured and clear yet. The purpose of this research was to help BRT stakeholders with an effective method to plan and assess BRT projects. The first goal of this research was to provide a comprehensive description of the essential characteristics of BRT …

Modeling Geographic Awareness Of Road Networks For Consistency Verification, Ari Kassin

Open Access Theses & Dissertations

Problems related to transportation and inspection of valuable or sensitive assets such as commercial products and materials, cultural items and works of art, and hazardous materials share similarities and can be modeled by a core set of abstract entities including a payload, a vehicle, a driver, and an inspector. To make the load handling capabilities of security monitoring and inspection systems more scalable, security can be increased by reducing the variability of transportation routes to a finite set of authorized routes between trip origin and destination locations. Then trip anomalies, which are unexpected trip variations, can be used in inspection …

Double Crossover Diamond Interchange With Frontage Roads, Jorge Alberto Martinez

Open Access Theses & Dissertations

The increase in population has generated an increase in traffic along most cities in the world. Engineers are being challenged to provide mobility to our transportation networks to ensure the delivery of our everyday goods. A new interchange design called the Double Crossover Diamond Interchange is beginning to become widely popular when considering freeway junctions. However, there has not been research about this type of design where frontage roads and through movements exist. The intent of this study is to compare the operational effects of the Conventional Diamond Interchange with a Modified Double Crossover Diamond Interchange that can accommodate through …

A Behavioral Observation Study Of Turkish Drivers’ And Children's Safety Belt Use, Bryan E. Porter, Timo Lajunen, Türker Özkan, Kelli England Will

Psychology Faculty Publications

Researchers focused on child restraint use in vehicles travelling along Turkish roadways. Field observations occurred at 1.5 - 2 hour intervals during daylight hours between 1130 and 1930 in January 2009. Overall, 1,423 vehicles with children 8 years old and younger were observed completely. Drivers’ belt use was 52.1%. Children's use rate (over all age categories and restraint systems) was even lower at 29.4%. Unfortunately, 29.4% of these vehicles also had a child riding on another occupant's lap. The findings supported researchers’ concerns that children are at risk for traffic crash injuries and fatalities in Turkey, and that occupant protection …

Rural Transit In Oregon: Current And Future Needs, Jennifer Dill, Margaret B. Neal

Urban Studies and Planning Faculty Publications and Presentations

The purpose of the research reported was to identify the current status and needs for general public transportation in Oregon’s rural areas, as well as opportunities and barriers (e.g., funding, governance issues, and leadership) to expanding services over a 20 year period. Oregon is a largely rural state. This lack of density poses problems for the provision of public transit, whether through fixed route or demand response service. People living in the rural areas and who lack cars and access to public transportation are at a strong disadvantage. With no access to these transit resources, they may be limited to …

Procure Financing For Shipping By Auctions, Kekun Wu

Dissertations and Theses Collection (Open Access)

We study a risk management problem in the scenario of ship procurement. A shipping firm faces a certain financing pressure for the procurement of a new ship. On the other hand, the capacity of the ship excesses the demand requirement of the firm. The firm wants to reduce the payment and control the risk by selling a percentage of capacity to another shipping company. We introduce an auction mechanism for the firm to select the partner and determine the sharing percentage. Acting as the auctioneer, the firm announces a certain percentage of capacity to a set of buyers. The payment …

Bringing World-Class High-Speed Rail To America: Special General Session, 12th Annual Transportation And Infrastructure Summit, Mti S-09-04, Mti

Mineta Transportation Institute

The 12th Annual Transportation & Infrastructure Summit, held in Irving, Texas on August 11?14, 2009, provided more than 1,100 attendees from 30 states and 13 countries the opportunity to network and interact with elected representatives and influential transportation officials from the United States, and to learn about transportation systems on a global scale. The special session, "Bringing World-Class High-Speed Rail to America," featured representatives from three proposed regional high-speed rail projects currently planned for the United States. Majority Whip of the California State Assembly Fiona Ma shared information about California´s High-Speed Rail Initiative. Assemblywoman Ma talked about her experience on …

Supplement To Mti Study On Selective Passenger Screening In The Mass Transit Rail Environment, Mti Report 09-05, Brian M. Jenkins, Bruce Robert Butterworth, Larry N. Gertson

Mineta Transportation Institute

This supplement updates and adds to MTIs 2007 report on Selective Screening of Rail Passengers (Jenkins and Butterworth MTI 07-06: Selective Screening of Rail Passengers). The report reviews current screening programs implemented (or planned) by nine transit agencies, identifying best practices. The authors also discuss why three other transit agencies decided not to implement passenger screening at this time. The supplement reconfirms earlier conclusions that selective screening is a viable security option, but that effective screening must be based on clear policies and carefully managed to avoid perceptions of racial or ethnic profiling, and that screening must have public support. …

A Case Study Of Enterprise Historic Resources Information Management In Large Transportation Agencies, Mti Report 09-06, Eric E. Ingbar

Mineta Transportation Institute

Historic resources are in some way managed by every transportation agency in the nation. Transportation agencies manage historic and prehistoric archaeological sites, buildings, structures, objects, routes, landscapes, and districts to prevent damage to such resources and to mitigate damage when it is unavoidable. In order to track known resources, transportation agencies often keep local files in a variety of forms, rely upon external sources of information (e.g., historic preservation agencies at the state level), and depend upon staff expertise gained by years of local work. Starting in 1997, Caltrans started a series of surveys of rural rights of way in …

Implementation And Development Of Vehicle Tracking And Immobilization Technologies, Brian Michael Jenkins, Bruce Robert Butterworth, Frances Edwards

Mineta Transportation Institute

Since the mid-1980s, limited use has been made of vehicle tracking using satellite communications to mitigate the security and safety risks created by the highway transportation of certain types of hazardous materials. However, vehicle-tracking technology applied to safety and security is increasingly being researched and piloted, and it has been the subject of several government reports and legislative mandates.

At the same time, the motor carrier industry has been investing in and implementing vehicle tracking, for a number of reasons, particularly the increase in efficiency achieved through better management of both personnel (drivers) and assets (trucks or, as they are …

Route Change Decision Making By Hurricane Evacuees Facing Congestion, R. Michael Robinson, Asad Khattak

VMASC Publications

Successful evacuations of metropolitan areas require overcoming unexpected congestion that reduces traffic flows. Congestion may result from accidents, incidents, or other events that reduce road capacity. Traffic professionals and emergency managers may promote deviations from planned routes to bypass an area of congestion and speed mass exit. However, some route changes may actually reduce traffic flow rates, and in these cases decision makers may want to discourage use of alternate routes. By using results of a behavioral survey of potential hurricane evacuees, this study identifies variables associated with the decision to alter routes and also identifies frequently used information sources. …

Effects Of Pedestrian Crossing On Roundabout Capacity, Carlos Duran

Open Access Theses & Dissertations

Modern roundabout is a relatively new form of intersection that has gained popularity in the United States due to its significant reduction of traffic accidents, reduction of vehicular delay and improvement in safety for pedestrians, cyclists and drivers. There has been significant research to determine the entry capacity of roundabouts in countries such as Germany, U.K., Australia and others. Although the number of pedestrians crossing a roundabouts approach has a clear effect on the approach entry capacity as with any other intersection, there has been no significant research in the U.S. on the effects of pedestrian crossing at roundabouts.

The …