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Analysis And Evaluation Of Safety Impacts Of Median Types And Midblock Left Turn Treatments For Urban Arterials, Timur Mauga 2010 University of Nevada, Las Vegas

Analysis And Evaluation Of Safety Impacts Of Median Types And Midblock Left Turn Treatments For Urban Arterials, Timur Mauga

UNLV Theses, Dissertations, Professional Papers, and Capstones

Urban growth leads to new land-uses abutting arterials requiring driveways for their accessibility. Uncontrolled number and locations of such access points causes safety, mobility and accessibility problems. The solution to these problems is access management (AM) which controls the number and location of the access points. AM techniques are normally documented in the form of guidelines for engineers and planners to follow when implementing the techniques. However, AM guidelines may not cover every technique due to the fact that AM is still growing. For example, the current AM guideline prepared by The Nevada Department of Transportation addresses many AM techniques. …


Model-Based Analysis Of Electric Drive Options For Medium-Duty Parcel Delivery Vehicles, Robb A. Barnitt, Aaron D. Brooker, Laurie Ramroth 2010 National Renewable Energy Laboratory

Model-Based Analysis Of Electric Drive Options For Medium-Duty Parcel Delivery Vehicles, Robb A. Barnitt, Aaron D. Brooker, Laurie Ramroth

Publications (T)

Medium-duty vehicles are used in a broad array of fleet applications, including parcel delivery. These vehicles are excellent candidates for electric drive applications due to their transient-intensive duty cycles, operation in densely populated areas, and relatively high fuel consumption and emissions. The National Renewable Energy Laboratory (NREL) conducted a robust assessment of parcel delivery routes and completed a model-based techno-economic analysis of hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle (PHEV) configurations. First, NREL characterized parcel delivery vehicle usage patterns, most notably daily distance driven and drive-cycle intensity. Second, drive-cycle analysis results framed the selection of drive cycles used …


Development Of Guidance For States Transitioning To New Safety Analysis Tools, Priyanka Alluri 2010 Clemson University

Development Of Guidance For States Transitioning To New Safety Analysis Tools, Priyanka Alluri

All Dissertations

With about 125 people dying on US roads each day, the US Department of Transportation heightened the awareness of critical safety issues with the passage of SAFETEA - LU (Safe Accountable Flexible Efficient Transportation Equity Act - a Legacy for Users) legislation in 2005. The legislation required each of the states to develop a Strategic Highway Safety Plan (SHSP) and incorporate data-driven approaches to prioritize and evaluate program outcomes: Failure to do so resulted in funding sanctioning. In conjunction with the legislation, research efforts have also been progressing toward the development of new safety analysis tools such as IHSDM (Interactive …


Ensemble-Based Method For Task 2: Predicting Traffic Jam, Jingrui HE, Qing HE, Grzegorz SWIRSZCZ, Yiannis KAMARIANAKIS, Rick LAWRENCE, Wei SHEN, Laura WYNTER 2010 Singapore Management University

Ensemble-Based Method For Task 2: Predicting Traffic Jam, Jingrui He, Qing He, Grzegorz Swirszcz, Yiannis Kamarianakis, Rick Lawrence, Wei Shen, Laura Wynter

Research Collection School Of Computing and Information Systems

In this paper, we describe our solution for ICDM 2010 Contest Task 2 (Jams), where the task is to predict future where the next traffic jams will occur in morning rush hour, given data gathered during the initial phase of this peak period. Our solution, which is based on an ensemble approach, finished Second in the final evaluation.


Automobile Exhaust Gas Detection Based On Fuzzy Temperature Compensation System, Zhiyong WANG, Hao DING, Fufei HAO, Zhaoxia WANG, Zhen SUN, Shujin LI 2010 Singapore Management University

Automobile Exhaust Gas Detection Based On Fuzzy Temperature Compensation System, Zhiyong Wang, Hao Ding, Fufei Hao, Zhaoxia Wang, Zhen Sun, Shujin Li

Research Collection School Of Computing and Information Systems

A temperature compensation scheme of detecting automobile exhaust gas based on fuzzy logic inference is presented in this paper. The principles of the infrared automobile exhaust gas analyzer and the influence of the environmental temperature on analyzer are discussed. A fuzzy inference system is designed to improve the measurement accuracy of the measurement equipment by reducing the measurement errors caused by environmental temperature. The case studies demonstrate the effectiveness of the proposed method. The fuzzy compensation scheme is promising as demonstrated by the simulation results in this paper.


Trail Planning & Community Service Curriculum, Lynn Weigand 2010 Portland State University

Trail Planning & Community Service Curriculum, Lynn Weigand

TREC Final Reports

The objective of this project was to develop a new trail planning curriculum and conduct a regional trail research project in the Portland metropolitan area. The curriculum was created for a community service-based, University Capstone course at Portland State University (PSU), with Metro (regional government) as the community course partner. Project goals included: Expanding opportunities for undergraduate students to study trail design and planning for transportation and recreational walking and bicycling; Providing practical application of knowledge to a trail planning project through research and data collection on trail use; Raising awareness of bicycle and pedestrian travel among students in disciplines …


2012 Census Of California Water Transit Services ,Mti Report 12-02, Richard M. Kos, Maria Louise Javier, Brent Carvalho, Asha W. Agrawal 2010 San Jose State University

2012 Census Of California Water Transit Services ,Mti Report 12-02, Richard M. Kos, Maria Louise Javier, Brent Carvalho, Asha W. Agrawal

Mineta Transportation Institute

The U.S. Bureau of Transportation Statistics conducts a nationwide census of ferry boat operators for the U.S. Department of Transportation and the collected information is used for statistical purposes. The Caltrans Division of Local Assistance has been asked by the Federal Highway Administration (FHWA) to gather data regarding ferry operations under MAP-21, the Moving Ahead for Progress in the 21st Century Act. MAP-21 includes a new formula program for ferry boats and ferry terminal facilities eligible under 23 USC 129(c) which authorizes federal participation in toll roads, bridges, tunnels, and ferries. FHWA has asked that Caltrans assure the ferry boat …


Measuring Walking And Cycling Using The Pabs (Pedestrian And Bicycling Survey) Approach: A Low-Cost Survey Method For Local Communities, Ann Forsyth 2010 San Jose State University

Measuring Walking And Cycling Using The Pabs (Pedestrian And Bicycling Survey) Approach: A Low-Cost Survey Method For Local Communities, Ann Forsyth

Mineta Transportation Institute

To tackle the problems of greenhouse gas emissions, traffic congestion, resident quality of life, and public health concerns, communities are using initiatives to spur more walking and cycling. As local governments face hard choices about which programs to fund, decision makers, planners, and residents seek to understand if proposed policies to increase bicycling and walking—modes referred to as “active travel”— actually work. However, most communities have unreliable means to know how many active travel trips occur in their jurisdictions, let alone how the numbers may change over time. This project developed a low-budget survey method and related sampling strategy for …


Tls Newsletter Volume 4, Edition 3. November, 2010, UNF Transportation and Logistics Society 2010 University of North Florida

Tls Newsletter Volume 4, Edition 3. November, 2010, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: In the Know--A Look Inside Jaxport. General Meeting and Professionals In Logistics Panel 11/3/2010. Life after Graduation with Rachel Cecil. Important Upcoming Dates. Get to Know TLS Secretary & Newsletter Editor Matthew Bullard.


Analysis Of Bus Collision Incidents Using Transit Its And Other Archived Operations Data, James G. Strathman, Paul Herman Wachana, Steve Callas 2010 Portland State University

Analysis Of Bus Collision Incidents Using Transit Its And Other Archived Operations Data, James G. Strathman, Paul Herman Wachana, Steve Callas

TREC Final Reports

This report analyzes factors contributing to bus operations safety incidents at TriMet, the transit provider for the Portland Oregon metropolitan region. The analysis focuses on 4,631 collision and non-collision incidents that occurred between 2006 and 2009. Empirical analysis of these incidents draws on a wide array of operator-level data recovered by transit ITS technologies in combination with information from TriMet’s human resources, scheduling, and customer relations databases. Incident frequencies are estimated in relation to operators’ demographic characteristics, employment status, assigned work characteristics, service delivery and performance indicators, temporal factors, and customer information. Apart from identifying factors that are empirically related …


International Business Travel In The Global Economy, J.V. Beaverstock, B. Derudder, J. Faulconbridge, F. Witlox (Eds.), Terence Ping Ching FAN 2010 Singapore Management University

International Business Travel In The Global Economy, J.V. Beaverstock, B. Derudder, J. Faulconbridge, F. Witlox (Eds.), Terence Ping Ching Fan

Research Collection Lee Kong Chian School Of Business

Business travel accounts for a disproportionately large share of revenue and profit to transport service providers, and is therefore an important topic. However, few studies on international travels focus squarely on business travellers because these individuals are inherently difficult to identify: they do not always travel in business cabins (p. 79) and it is increasingly difficult to quantify the duration and function of business trips as travellers build in extra time to allow for flight delays or for other leisure activities (p. 69). Scholars of transport studies, especially air transport specialists, geographers, sociologists, and to a lesser extent, marketers of …


Suicides On Commuter Rail In California: Possible Patterns — A Case Study, Research Report 10-05, Jan L. Botha, Kristina A. Elmasu, Philip J. Leitzell 2010 San Jose State University

Suicides On Commuter Rail In California: Possible Patterns — A Case Study, Research Report 10-05, Jan L. Botha, Kristina A. Elmasu, Philip J. Leitzell

Mineta Transportation Institute

Suicides on rail systems constitute a significant social concern. Reports in local media, whether in newspapers, television, or radio, have brought awareness to this very sensitive and personal subject. This is also true for the San Francisco Bay Area. These events also cause severe trauma for the train operators and staff of the system as well as disruption and cost to society. The overall objective of this project was to conduct a pilot study to identify possible patterns in suicides associated with urban commuter rail systems in California. The Caltrain commuter rail system in the San Francisco Bay Area was …


Turning Over A New Leaf: The Start Of An Electric Vehicle Revolution, Symposium Report S-09-08, MTI 2010 San Jose State University

Turning Over A New Leaf: The Start Of An Electric Vehicle Revolution, Symposium Report S-09-08, Mti

Mineta Transportation Institute

Environmental legislation and public interest in reducing automobile emissions have generated increased efforts to develop and market electrically powered vehicles. But long-distance driving and limited infrastructure for recharging pose serious challenges. What is the industry doing to overcome these limitations? Are electric vehicles a viable solution? On May 18, 2010, the Mineta Transportation Institute (MTI), along with the the U.S. Department of Transportation, Caltrans, and other sponsors and co-sponsors, hosted a panel of experts to address the environmental impact, engineering, and market acceptance of electric vehicles, and the infrastructure needed to keep them viable. Discussion centered around the need for …


Reliability Centered Maintenance: A Case Study Of Railway Transit Maintenance To Achieve Optimal Performance, Mti Report 10-06, Felix A. Marten Jr. 2010 University of Phoneix

Reliability Centered Maintenance: A Case Study Of Railway Transit Maintenance To Achieve Optimal Performance, Mti Report 10-06, Felix A. Marten Jr.

Mineta Transportation Institute

The purpose of this qualitative case study was to identify the types of obstacles and patterns experienced by a single heavy rail transit agency located in North America that embedded a Reliability Centered Maintenance (RCM) Process. The outcome of the RCM process also examined the impact of RCM on availability, reliability, and safety of rolling stock. This qualitative study interviewed managers (10 cases), and non-managers (10 cases) at the transit agency obtain data. The data may serve to help rail transit leaders determine future strategic directions that would improve this industry. Despite the RCM record in other fields, it has …


Benchmarking And Evaluating The Comparative Efficiency Of Urban Paratransit Systems In The United States: A Data Envelopment Analysis Approach, Hokey Min, Thomas E. Lambert 2010 Bowling Green State University

Benchmarking And Evaluating The Comparative Efficiency Of Urban Paratransit Systems In The United States: A Data Envelopment Analysis Approach, Hokey Min, Thomas E. Lambert

Journal of Transportation Management

Passenger rail service is perceived to provide important benefits to Michigan communities. However, the extent of these benefits has never been quantified in a systematic way. The study reported on here involved the performance of a broad based assessment of the community level benefits of passenger rail serv ice. The main objective of the research project was to estimate the full range of these benefits at the community level, as opposed to at the state level. Benefits were estimated for individual travelers, Amtrak expenditures, and local businesses. This research indicates local communities currently realize $62.0 million annually in benefits. Additional …


Analytical Techniques And The Air Force Logistics Readiness Officer, Bryan D. Main, William A. Cunningham III, Daniel D. Mattioda, Joseph B. Skipper 2010 Air Force Institute of Technology

Analytical Techniques And The Air Force Logistics Readiness Officer, Bryan D. Main, William A. Cunningham Iii, Daniel D. Mattioda, Joseph B. Skipper

Journal of Transportation Management

The accelerated globalization of logistics activities over the last several decades has spurred a rapid expansion of port facilities all cross the world. However, the recent slowdown of international trade, coupled with a global financial crisis, has created an on-going glut of international port facilities throughout the world. Although the abundance of port facilities provides more transshipment options for carriers and shippers, it makes the port selection decision more complex and difficult. To cope with this new set of challenges, this paper proposes a hybrid data envelopment analysis (DEA)/ analytic hierarchy process (AHP) model that is designed to identify factors …


Tls Newsletter Volume 4, Edition 2. October, 2010, UNF Transportation and Logistics Society 2010 University of North Florida

Tls Newsletter Volume 4, Edition 2. October, 2010, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: In the Know--Join TLS, Prepare for the Future. General Meeting and Young Alumni Panel Ocotber 13th. Life after Graduation with Maria Lugovets. Important Upcoming Dates. Get to know TLS Recruitment Director Joseph Finnigan


Demonstrating The Benefits Of Green Streets For Active Aging: Initial Findings, Jennifer Dill, Margaret B. Neal, Vivek Shandas, Gretchen Luhr, Arlie Steven Adkins, Darin Lund 2010 Portland State University

Demonstrating The Benefits Of Green Streets For Active Aging: Initial Findings, Jennifer Dill, Margaret B. Neal, Vivek Shandas, Gretchen Luhr, Arlie Steven Adkins, Darin Lund

Urban Studies and Planning Faculty Publications and Presentations

This project will help demonstrate how sustainable ("green") streets contribute to the well-being of a community, including the physical and mental health of older and younger adults, along with the environment and economy. The project will collect data in Portland, OR neighborhoods to answer the following research questions: Are residents living near sustainable streets more physically active in their neighborhood? Do residents living near sustainable streets interact with neighbors more and demonstrate higher levels of neighborhood social capital? What are residents’ opinions of sustainable streets? Are there variations in responses to sustainable streets by age or other demographics? In particular, …


The Relationship Between Measures Of Operations Efficiency And Financial Success Of Truckload Motor Carriers: An Empirical Analysis, Ahren Johnston 2010 Missouri State University

The Relationship Between Measures Of Operations Efficiency And Financial Success Of Truckload Motor Carriers: An Empirical Analysis, Ahren Johnston

Journal of Transportation Management

This research paper examines the statistical relationship between clay to day performance and effi­ ciency measures and financial performance in the motor carrier industry. Key findings are that carriers with more miles per tractor per year, a larger average length of haul, more revenue per mile, and more revenue per tractor per week tend to perform better financially as measured in three separate models by operating ratio, return on assets, or return on equity. Unexpectedly, for the eight publicly traded carriers included in the analysis, there was a negative relationship between empty mile percentage and financial performance, indicating that carriers …


Trip Patterns In Akure, Nigeria: A Land-Use Analytical Approach, A.O. Owolabi 2010 Nigerian Federal University of Technology

Trip Patterns In Akure, Nigeria: A Land-Use Analytical Approach, A.O. Owolabi

Journal of Transportation Management

For transportation planners, the use of Origin-Destination (OD) matrix adjustment, is receiving considerable attention. However, there are concerns about the validity of results, primarily related to the number and location of traffic count posts. This leads to the question “What would be the best set of traffic count posts to use in OD matrix adjustment modules?” It has been proved that solving this problem is cumbersome. There have been several attempts (either exact or heuristic approaches) to address this problem. But due to the inherent complexities, there is no efficient and easy-to-use methodology able to address situations on the scale …


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