2012 Portland Metropolitan Region Transportation System Performance Report,
2013
Portland State University
2012 Portland Metropolitan Region Transportation System Performance Report, Robert L. Bertini, Dean George, Matthew Downey
Civil and Environmental Engineering Faculty Publications and Presentations
Our transportation system is a key ingredient in the economy, quality of life and urban fabric of the Portland metropolitan area. It has been stated in the past that it is not possible to manage our transportation system tomorrow unless we understand how it is performing today. In this spirit, Portland State University has been working with regional and statewide partners to develop new capabilities to measure, monitor and track the performance of the transportation system in real time and using archived data sources. We believe that it is possible to leverage these disparate data sources toward providing better transportation …
Making Streets Into Complete Streets: An Evidence-Based Design Manual,
2013
University of Oregon
Making Streets Into Complete Streets: An Evidence-Based Design Manual, Marc Schlossberg, John Rowell
TREC Final Reports
The predominant approach toward street function on major roads in the United States is to emphasize mobility and throughput of vehicles. The “Complete Streets” movement challenges some of this paradigm, emphasizing that streets should accommodate multiple modes of travel and should often be considered destinations themselves. Often, efforts to transform streets into Complete Streets face resistance from both professional communities of traffic engineers and from the public that their design will reduce throughput and vehicle flow..Complete Streets advocates, in some cases, counter that while their designs often create pedestrian and cycling space from areas that were previously occupied by automobiles, …
Merged Aggregate Nearest Neighbor Query Processing In Road Networks,
2013
Fudan University
Merged Aggregate Nearest Neighbor Query Processing In Road Networks, Weiwei Sun, Chong Chen, Baihua Zheng, Chunan Chen, Liang Zhu
Research Collection School Of Computing and Information Systems
Aggregate nearest neighbor query, which returns a common interesting point that minimizes the aggregate distance for a given query point set, is one of the most important operations in spatial databases and their application domains. This paper addresses the problem of finding the aggregate nearest neighbor for a merged set that consists of the given query point set and multiple points needed to be selected from a candidate set, which we name as merged aggregate nearest neighbor(MANN) query. This paper proposes an effective algorithm to process MANN query in road networks based on our pruning strategies. Extensive experiments are conducted …
Thirteenth Annual Garrett Morgan Sustainable Transportation Symposium, Mti Report S-13-01,
2013
San Jose State University
Thirteenth Annual Garrett Morgan Sustainable Transportation Symposium, Mti Report S-13-01, Mineta Transportation Institute
Mineta Transportation Institute
On April 9, 2013, the Mineta Transportation Institute (MTI) continued its support of the U.S. Department of Transportation’s Garrett A. Morgan Technology and Transportation Futures Program by conducting the Thirteenth National Garrett Morgan Symposium and Videoconference on Sustainable Transportation. The ongoing mission of this national videoconference is to stimulate the minds of young people and to encourage them to pursue challenging academic programs including mathematics and science—an education course that will prepare today’s students for tomorrow’s challenging transportation careers. Participating schools were: Eagle Prairie School, Rio Dell CA (two teams); Juan Crespi Middle School, El Sobrante CA; Morada Middle School, …
Customer Satisfaction Index Of Singapore 2013: Q2 Results,
2013
Singapore Management University
Customer Satisfaction Index Of Singapore 2013: Q2 Results, Institute Of Service Excellence, Smu
Research Collection Institute of Service Excellence (2007-2024)
The Customer Satisfaction Index of Singapore (CSISG) computes customer satisfaction scores at the national, sector, sub-sector, and company levels. The CSISG serves as a quantitative benchmark of the quality of goods and services produced by the Singapore economy over time and across countries. This is the CSISG’s seventh year of measurement.
Tls Newsletter Volume 7, Edition 8 September, 2013,
2013
University of North Florida
Tls Newsletter Volume 7, Edition 8 September, 2013, Unf Transportation And Logistics Society
Transportation & Logistics Society Newsletter
Inside the Newsletter: TLS Kick-Off Meeting. Upcoming Events. TLS President's Corner. Are You Feeling Lucky? T & L Career Day: Are you Prepared? Get to Know TLS Newsletter Editor Lacey Greene. TLS on Tour: Beaver Street Fisheries. Life After Graduation with Matthew Alexander
Improving The Representation Of The Pedestrian Environment In Travel Demand Models, Phase I,
2013
Portland State University
Improving The Representation Of The Pedestrian Environment In Travel Demand Models, Phase I, Kelly J. Clifton, Patrick Allen Singleton, Christopher Devlin Muhs, Robert J. Schneider, Peter Lagerwey
Civil and Environmental Engineering Faculty Publications and Presentations
There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Metropolitan planning organizations (MPOs) are improving regional travel demand forecasting models to better represent walking and bicycling and to expand the evaluative capacity of models to address policy-relevant issues like air quality, public health, and the smart allocation of infrastructure and other resources. This report describes an innovative, spatially disaggregate method to integrate walking activity into trip-based travel models. Using data for the Portland, OR, metropolitan area, the method applies trip generation at a new micro-scale spatial unit: a 264-foot-by-264-foot …
Modeling Of Dc Link Capacitor Current Ripple For Electric Vehicle Traction Converter,
2013
Oregon State University
Modeling Of Dc Link Capacitor Current Ripple For Electric Vehicle Traction Converter, Lei Jin, Julia Zhang
TREC Final Reports
Contemporary Full Hybrid Electric Vehicle/Plug-in Hybrid Electric Vehicle/Battery Electric Vehicle (FHEV/PHEV/BEV) products use one or more DC/AC power converters, also known as traction inverters, to convert the DC voltage/current provided by the traction battery to the AC voltage/current to drive the traction motor(s). Large and bulky DC link capacitors are used at the input of the traction inverter to provide a smooth DC input voltage. Those DC link capacitors, occupying almost 50% of the space in the whole package, can contribute to more than 20% of the total cost of the traction inverter. They are generally over designed to assure …
An Activity-Based Learning Module For Human Factors In The Introductory Transportation Engineering Course,
2013
Oregon State University
An Activity-Based Learning Module For Human Factors In The Introductory Transportation Engineering Course, David Hurwitz
TREC Final Reports
This project summary report describes the execution of OTREC Project #517 (An ActivityBased Learning Module for Human Factors in the Introductory Transportation Engineering Course)
Multimodal Data At Signalized Intersections: Strategies For Archiving Existing And New Data Streams To Support Operations And Planning & Fusion And Integration Of Arterial Performance Data,
2013
Portland State University
Multimodal Data At Signalized Intersections: Strategies For Archiving Existing And New Data Streams To Support Operations And Planning & Fusion And Integration Of Arterial Performance Data, Kristin A. Tufte, Christopher M. Monsere, Sirisha Murthy Kothuri, Carl Scott Olson
TREC Final Reports
There is a growing interest in arterial system management due to the increasing amount of travel on arterials and a growing emphasis on multimodal transportation. The benefits of archiving arterial-related data are numerous. This research report describes our efforts to assemble and develop a multimodal archive for the Portland-Vancouver region. There is coverage of data sources from all modes in the metropolitan region; however, the preliminary nature of the archiving process means that some of the data are incomplete and samples. The arterial data sources available in the Portland-Vancouver region and that are covered in this report include data for …
Evaluation Of A Pilot Of The Oregon Department Of Transportation’S Ecodrive Program,
2013
Portland State University
Evaluation Of A Pilot Of The Oregon Department Of Transportation’S Ecodrive Program, Donald M. Truxillo, John Macarthur, Frankie Guros, Layla R. Mansfield
Psychology Faculty Publications and Presentations
Economical, ecological, and safe driving – eco-driving – is aimed at reducing fuel consumption and greenhouse gas emissions (Martin, Chan, & Shaheen, 2012). The adoption of energy-efficient driving styles and practices has been recognized as a means of reducing energy consumption, and estimates of energy savings attributed to eco-driving have been reported to range from 5% to as high as 20%, depending on the driving context (Barkenbus, 2010; Stillwater & Kurani, 2013; van der Voort, Dougherty & van Maareseveen, 2001). Eco-driving is being promoted in partnership among the Oregon Department of Transportation (ODOT) (Planning, Safety and Motor Carrier Division), the …
Transit Bus Fleet Age And Replacement Type Optimization,
2013
Portland State University
Transit Bus Fleet Age And Replacement Type Optimization, Miguel A. Figliozzi, Wei Feng, Jesse Boudart
Civil and Environmental Engineering Faculty Publications and Presentations
Due to recent budget and fiscal constraints, it is ever more imperative for transit agencies to manage their fleets in an optimal way. Fleet data have consistently shown that bus operational and maintenance (O&M) per-mile costs increase as buses age. From a purely economic perspective, there is a cost tradeoff between the lower O&M costs of newer fleets and their higher initial capital costs. This tradeoff has a significant impact on the optimal timing of purchase and replacement decisions. Utilizing realistic cost data and an optimization modeling framework, we analyze (a) the impact of purchase timing decisions on fleet per-mile …
Affordable Fares, Sustainable Public Transport: The Fare Review Mechanism Committee Report,
2013
Singapore Management University
Affordable Fares, Sustainable Public Transport: The Fare Review Mechanism Committee Report, Sock Yong Phang
Research Collection School Of Economics
The public transport system in Singapore is the main mode of transport for the majority of the population. It is important that public transport remains generally affordable and accessible, with measures to help various commuter groups through fare assistance schemes. Household surveys show that public transport has become more affordable as a proportion of monthly household income over the years. Public transport fares have increased, but at a much lower rate than increases in income. At the same time, increasing fuel costs and other changes in the public transport landscape since 2005 mean that the public transport industry faces declining …
Assessing Importance And Satisfaction Judgments Of Intermodal Work Commuters With Electronic Survey Methodology, Mti Report Wp 12-01,
2013
San Jose State University
Assessing Importance And Satisfaction Judgments Of Intermodal Work Commuters With Electronic Survey Methodology, Mti Report Wp 12-01, Steven D. Silver
Mineta Transportation Institute
Recent advances in multivariate methodology provide an opportunity to further the assessment of service offerings in public transportation for work commuting. We offer methodologies that are alternative to direct rating scale and have advantages in the quality and precision of measurement. The alternative of methodology for adaptive conjoint analysis for the measurement of the importance of attributes in service offering is implemented. Rasch scaling methodology is used for the measurement of satisfaction with these attributes. Advantages that these methodologies introduce for assessment of the respective constructs and use of the assessment are discussed. In a first study, the conjoint derived …
Maritime Safety Supervision And Control Of Lng Vessels In China During The Marine Transportation Process,
2013
World Maritime University
Maritime Safety Supervision And Control Of Lng Vessels In China During The Marine Transportation Process, Yali Sun
Maritime Safety & Environment Management Dissertations (Dalian)
No abstract provided.
Biofouling : A Means Of Aquatic Species Transfer,
2013
World Maritime University
Biofouling : A Means Of Aquatic Species Transfer, Anne Bouyssou, Josefin Madjidian
NSBWO
Ships carry seawater in their ballast tanks when they are not fully loaded with cargo, in order to maintain adequate trim, draught and stability, adjust list and limit stresses on the hull. It is now well documented that the water pumped into the ship contains aquatic organisms – which can also sink to the sediments at the bottom of tanks – and that these organisms are thereby transferred from the port of origin to the destination. But it is seldom mentioned that aquatic organisms are also found on the outside of ships, attached on their hulls and appendages, as a …
Derailed: Communicating Singapore’S Mass Transit Crises [Case Study],
2013
Singapore Management University
Derailed: Communicating Singapore’S Mass Transit Crises [Case Study], Pang, A.
Research Collection Lee Kong Chian School Of Business
The case: In December 2011, one of Singapore’s main mass transit rail lines came to a standstill for several hours on two separate days. While occasional public transport breakdowns are unavoidable, the rail operator came under intense criticism for its poor handling of the incidents, including its failure in crisis communication. Its value: This case can be used to illustrate a number of perspectives and concepts from the literature on crisis and organisational communication. Of particular contemporary interest is what the case shows about how communication technologies, including social media, should and should not be used by organisations.
Route Segment Level Analysis Of Bus Safety Incidents,
2013
Portland State University
Route Segment Level Analysis Of Bus Safety Incidents, James G. Strathman, Sung Moon Kwon
Urban Studies and Planning Faculty Publications and Presentations
This paper analyzes collision and non-collision incidents that occurred on TriMet’s bus system over a near two-year period. The bus route network was decomposed into stop and line haul segments, and a typology of models was estimated from segment level incident, risk exposure, and roadway feature data. The frequency of non-collision incidents – mainly slips, trips and falls – was estimated to be primarily related to associated risk exposure variables. The frequency of collision incidents was also estimated to be related to risk exposure variables, as well as a number of roadway design variables. The findings serve as an initial …
Scalable Randomized Patrolling For Securing Rapid Transit Networks,
2013
Singapore Management University
Scalable Randomized Patrolling For Securing Rapid Transit Networks, Pradeep Varakantham, Hoong Chuin Lau, Zhi Yuan
Research Collection School Of Computing and Information Systems
Mass Rapid Transit using rail is a popular mode of transport employed by millions of people in many urban cities across the world. Typically, these networks are massive, used by many and thus, can be a soft target for criminals. In this paper, we consider the problem of scheduling randomised patrols for improving security of such rail networks. Similar to existing work in randomised patrols for protecting critical infrastructure, we also employ Stackelberg Games to represent the problem. In solving the Stackelberg games for massive rail networks, we make two key contributions. Firstly, we provide an approach called RaPtoR for …
Best Upgrade Plans For Large Road Networks,
2013
Singapore Management University
Best Upgrade Plans For Large Road Networks, Yimin Lin, Kyriakos Mouratidis
Research Collection School Of Computing and Information Systems
In this paper, we consider a new problem in the context of road network databases, named Resource Constrained Best Upgrade Plan computation (BUP, for short). Consider a transportation network (weighted graph) G where a subset of the edges are upgradable, i.e., for each such edge there is a cost, which if spent, the weight of the edge can be reduced to a specific new value. Given a source and a destination in G, and a budget (resource constraint) B, the BUP problem is to identify which upgradable edges should be upgraded so that the shortest path distance between source and …
