Transportation Commons^™

Spatial Analysis Of Burglary And Robbery Crime Concentration Near Mass-Transit In Portland, Bryce Edward Barthuly

Dissertations and Theses

The relationship between mass-transit and the concentration of burglary and robbery crimes is inconsistent within the available literature in environmental criminology. A number of studies have provided evidence of crime concentration at and near mass transit locations where paths intersect, referred to as a node. These empirical studies bring in environmental criminology theory with the idea that crime is clustered, and the pattern of the concentrations is substantially influenced by how and why people travel and move in a city. It is suggested that public transit allows for a large proportion of the population to move around the community along …

Wrack Lines Volume 19, Number 1, Spring/Summer 2019, Nancy Balcom, Syma Ebbin, David Gregorio, Richard Telford, Judy Benson

Wrack Lines

Issue theme is: "Making Connections: As the Climate Changes, People and Nature Intertwine in New Ways." Articles include: "As More Roads Become Rivers, Communities Search for Solutions;" "Solving an Engineering Conundrum: As Coastal Homes Get Elevated, New Research Looks at Whether Vulnerability to Wind Damage Is Increasing;" "Along the Coast, Residents Consider How to Heed Sandy's Warning of What's to Come;" "All Rivers, All Lives Run to the Sea," about the intersection of waterways and the world of nature writer Edwin Way Teale; and "Crosscurrents: Connecticut Sea Grant's Retrospective Exhibition Makes Waves," about reaching new audiences and building bridges with …

Agent-Based Models In Supporting Pedestrian Transportation Planning And Design, Nicholas A. Perdue

Humboldt Journal of Social Relations

Agent-based models offer a new approach to understanding human-urban interactions in transportation systems, allowing individual entities within a system to be characterized with cognitive and behavioral properties. This paper discussed the role of agent-based representations of pedestrian transportation systems, detailing the underlying assumptions and techniques behind different types of pedestrian models and illustrating the differences between aggregate and individual agent representations. It then turns attention to the case study and the development of a cognitive pedestrian model as a way to illustrate the spectrum of potential spatial behaviors that are enabled by material changes to the transportation network. The paper …

Wreck On The Highway: The Intersectionality Of Driver Culpability, Thc, Other Intoxicants And Fatalities In Washington State, Youngki Woo, Dale W. Willits, Mary K. Stohr, Craig Hemmens, Staci Hoff

Criminal Justice Faculty Publications

Objective: Given the legalization of recreational cannabis in 2012 in Washington State and recent mixed results regarding the effects of cannabis on driver safety, we examine the link between Delta-9-Tetrahydrocannabinols (THC) and driver’s behavior, including speeding and driver errors which may have contributed to a particular fatal crash.

Methods: The current study utilized data from the Washington State Fatality Analysis Reporting System Analytical File (WA FARS) in years 2008-2016. A series of logistic regression were employed to compare THC positive and negative drivers, as well as drivers who tested positive for other intoxicants.

Results: The results of …

Evaluating Project Assessment Techniques For High-Profile Transportation Projects Development And Delivery: Case Of State Departments Of Transportation (Dots) In The United States, Rafaa Ibrahim Khalifa

Dissertations and Theses

Time delays and cost overruns in construction projects are generally due to factors such as inappropriate planning, design errors, unexpected site conditions, inadvisable tools selection, change scope, weather conditions, lack of resources, and other project changes. Time delays and cost overruns are of concern to most project managers, owners, and governments. These elements of time and cost are two of the critical defects that impact the construction project delivery. These defects can lead to project failures and to various negative issues like increasing in disagreements among the project team, the contractor, suppliers, and the owner.

State Departments of Transportation (DOTs) …

Small Towns With Big City Problems: Mobility Challenges And Solutions In Our Natural Areas, Danya Rumore, Philip Stoker, Zacharia Levine, Lindsey Romaniello

TREC Project Briefs

Western North America boasts an abundance of scenic mountains, ski areas, stunning desert landscapes and national parks. Living near these natural amenities are small communities, many of which are becoming increasingly popular places to live and visit. The influx of visitors creates unique transportation and mobility challenges for these small towns and cities, such as seasonal spikes in severe roadway congestion and a desire for e-bike share programs in communities of less than 1,000 people. These challenges often in turn affect community character and wellbeing.

Given their proximity to these impacted communities, NITC researchers Danya Rumore of the University of …

Final Project Report, Zhaohua Wang

CTEDD Final Project Reports - Archive

No abstract provided.

Final Project Report, Sean J. Barbeau, Nabanita Paul

CTEDD Final Project Reports - Archive

No abstract provided.

Final Project Report, Sanggyun Kang, Muhammad Arif Khan

CTEDD Final Project Reports - Archive

No abstract provided.

Final Project Report, Ankur Jain

CTEDD Final Project Reports - Archive

No abstract provided.

Final Project Report, Sean J. Barbeau, Robert Bertini

CTEDD Final Project Reports - Archive

No abstract provided.

Living Streets: A Pathway Toward Inclusive, Equitable, And Accessible Pedestrian Streets, Eavan Moore, Kevin Tracy, Jason Nolin, Zoie Wesenberg, Oscar Saucedo-Andrade, Kate Wihtol

Master of Urban and Regional Planning Workshop Projects

Since 2009, the Portland Bureau of Transportation (PBOT) has aimed to prioritize pedestrians above all other transportation modes. By putting pedestrians first, cities can improve outcomes for communities and transform streets into welcoming public spaces. Pedestrian streets help achieve this goal by reallocating space that was once dedicated to the movement and storage of cars to spaces for people to interact, socialize, and recreate. By developing a typology and an evaluation framework for pedestrian streets, this document attempts to answer the question, what could pedestrian streets look like in Portland’s Central City?

Planning In Gateway And Natural Amenity Region Communities: Understanding The Unique Challenges Associated With Transportation, Mobility, And Livability, Danya Rumore, Philip Stoker, Zacharia Levine, Lindsey Romaniello

TREC Final Reports

Communities outside of major public lands and other natural amenities throughout the western United States face a variety of transportation and planning-related concerns associated with rapid growth and increases in tourism. Surprisingly, while the unique transportation and planning-related challenges of these western gateway and amenity region (GNAR) communities have, to some extent, been documented in recreation and tourism research, these concerns have largely been overlooked in planning scholarship. To begin to address this gap, this report presents key descriptive findings from a study aimed at examining the unique transportation, mobility, and access to opportunity-related challenges being experienced by GNAR communities …

Understanding The Operating Landscape Of The Global Airline Industry: A Dea Integrated Alternating Conditional Expectation Approach, Joyce M. W. Low, Kum Khiong Yang

Research Collection Lee Kong Chian School Of Business

Purpose: This study investigates the relationships between service efficiency in 5 major cost centres (namely, business orientation, network coverage, physical resources, maintenance, repair and overhaul (MRO), and human resources) and profitability in the global airline industry. Design/methodology: The study integrates the Slack-based Model (SBM) of Data Envelopment Analysis (DEA) with the Alternating Conditional Expectation (ACE) regression to understand the relationships between an airline’s profitability and its efficiencies in 5 identified operations areas. Findings: Based on the observational data obtained from 75 international airlines, the relationships between operational performances and profitability are found to be curvilinear and contingent on an airline’s …

What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Ten Of A National Survey, Asha Weinstein Agrawal, Hilary Nixon

Mineta Transportation Institute

This report summarizes the results from the tenth year of a national public opinion survey asking U.S. adults questions related to their views on federal transportation taxes. A nationally representative sample of 2,723 respondents completed the online survey.

The questions test public opinions about both raising the federal gas tax rate and replacing the federal gas tax with a new mileage fee. In addition to asking directly about support for these tax options, the survey collected data on respondents’ views on the quality of their local transportation system, their priorities for federal transportation spending, their knowledge of how much they …

Modeling The Effect Of A Road Construction Project On Transportation System Performance, Venu M. Kukkapalli, Srinivas S. Pulugurtha

Mineta Transportation Institute

Road construction projects create physical changes on roads that result in capacity reduction and travel time escalation during the construction project period. The reduction in the posted speed limit, the number of lanes, lane width and shoulder width at the construction zone makes it difficult for the road to accommodate high traffic volume. Therefore, the goal of this research is to model the effect of a road construction project on travel time at road link-level and help improve the mobility of people and goods through dissemination or implementation of proactive solutions.

Data for a resurfacing construction project on I-485 in …

Modeling The Influence Of Land Use Developments On Transportation System Performance, Ajinkya S. Manes, Srinivas S. Pulugurtha

Mineta Transportation Institute

The growth in the urban population has influenced urban sprawl, congestion, and subsequently, delays on the existing road infrastructure. New land use developments occur in every part of the city due to rapid economic development and to meet the demand for better living standards. The induced traffic volume generated from such land use developments often results in increased congestion and vehicular delay on the existing roads. With recent advancements in the technology, it is possible to capture continuous, and comprehensive travel time data for every major corridor in a city. Therefore, the goal of this research is to model the …

Analysis Of Disengagements In Semi-Autonomous Vehicles: Drivers’ Takeover Performance And Operational Implications, Francesca M. Favaro, Sky Eurich, Syeda Rizvi, Shivangi Agarwal, Sumaid Mahmood, Nazanin Nader

Mineta Transportation Institute

This report analyzes the reactions of human drivers placed in simulated Autonomous Technology disengagement scenarios. The study was executed in a human-in-the-loop setting, within a high-fidelity integrated car simulator capable of handling both manual and autonomous driving. A population of 40 individuals was tested, with metrics for control takeover quantification given by: i) response times (considering inputs of steering, throttle, and braking); ii) vehicle drift from the lane centerline after takeover as well as overall (integral) drift over an S-turn curve compared to a baseline obtained in manual driving; and iii) accuracy metrics to quantify human factors associated with the …

Entrans: Leveraging Kinetic Energy Harvesting Signal For Transportation Mode Detection, Guohao Lan, Weitao Xu, Dong Ma, Sara Khalifa, Mahbub Hassan, Wen Hu

Research Collection School Of Computing and Information Systems

Monitoring the daily transportation modes of an individual provides useful information in many application domains, such as urban design, real-time journey recommendation, as well as providing location-based services. In existing systems, accelerometer and GPS are the dominantly used signal sources for transportation context monitoring which drain out the limited battery life of the wearable devices very quickly. To resolve the high energy consumption issue, in this paper, we present EnTrans, which enables transportation mode detection by using only the kinetic energy harvester as an energy-efficient signal source. The proposed idea is based on the intuition that the vibrations experienced by …

Can Ridehailing Deliver Equity? Lessons For New Mobility Planning, Anne Brown

PSU Transportation Seminars

Modes including ridehailing, bikeshare, and e-scooters offer the potential to revolutionize how people travel. But as cities and agencies work to integrate these new services into the existing transportation landscape, the equity implications of these modes remain murky.

This talk presents research on ridehail travel and equity from Los Angeles and compares the equity outcomes of ridehailing to the previous status quo embodied by taxis. The research highlights both the promise of new mobility services and the remaining obstacles to delivering equitable access. Findings yields implications for policies that cities and planners can advance to ensure that new travel modes …