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Beyond First/Last Mile Active Transportation - BikeShare@UH
Bike sharing is a new green transportation solution that has been developed and adopted at various cities around the world. In this paper, we present the process and results of the design and prototypes that a group of undergraduate students developed for a BikeShare@UH program during Summer 2017. After presenting the detailed results of four project teams focusing on customer discovery, bike share station (BSS) location identification, cloud-based mobile computing platform for user engagement and bike share program operation and management, smart lock, and alternative energy source based on PV panel. With the phase one implementation at the University planned in Spring 2018, we anticipate gathering real time data and feedback to improve the system.Cockrell School of Engineerin
Synergizing Roadway Infrastructure Investment with Digital Infrastructure for Infrastructure-Based Connected Vehicle Applications: Review of Current Status and Future Directions
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.The safety, mobility, environmental and economic benefits of Connected and Autonomous Vehicles (CAVs) are potentially dramatic. However, realization of these benefits largely hinges on the timely upgrading of the existing transportation system. CAVs must be enabled to send and receive data to and from other vehicles and drivers (V2V communication) and to and from infrastructure (V2I communication). Further, infrastructure and the transportation agencies that manage it must be able to collect, process, distribute and archive these data quickly, reliably, and securely. This paper focuses on current digital roadway infrastructure initiatives and highlights the importance of including digital infrastructure investment alongside more traditional infrastructure investment to keep up with the auto industry's push towards this real time communication and data processing capability. Agencies responsible for transportation infrastructure construction and management must collaborate, establishing national and international platforms to guide the planning, deployment and management of digital infrastructure in their jurisdictions. This will help create standardized interoperable national and international systems so that CAV technology is not deployed in a haphazard and uncoordinated manner
On the Feasibility of Social Network-based Pollution Sensing in ITSs
Intense vehicular traffic is recognized as a global societal problem, with a
multifaceted influence on the quality of life of a person. Intelligent
Transportation Systems (ITS) can play an important role in combating such
problem, decreasing pollution levels and, consequently, their negative effects.
One of the goals of ITSs, in fact, is that of controlling traffic flows,
measuring traffic states, providing vehicles with routes that globally pursue
low pollution conditions. How such systems measure and enforce given traffic
states has been at the center of multiple research efforts in the past few
years. Although many different solutions have been proposed, very limited
effort has been devoted to exploring the potential of social network analysis
in such context. Social networks, in general, provide direct feedback from
people and, as such, potentially very valuable information. A post that tells,
for example, how a person feels about pollution at a given time in a given
location, could be put to good use by an environment aware ITS aiming at
minimizing contaminant emissions in residential areas. This work verifies the
feasibility of using pollution related social network feeds into ITS
operations. In particular, it concentrates on understanding how reliable such
information is, producing an analysis that confronts over 1,500,000 posts and
pollution data obtained from on-the- field sensors over a one-year span.Comment: 10 pages, 15 figures, Transaction Forma
Human Mobility Trends during the COVID-19 Pandemic in the United States
In March of this year, COVID-19 was declared a pandemic and it continues to
threaten public health. This global health crisis imposes limitations on daily
movements, which have deteriorated every sector in our society. Understanding
public reactions to the virus and the non-pharmaceutical interventions should
be of great help to fight COVID-19 in a strategic way. We aim to provide
tangible evidence of the human mobility trends by comparing the day-by-day
variations across the U.S. Large-scale public mobility at an aggregated level
is observed by leveraging mobile device location data and the measures related
to social distancing. Our study captures spatial and temporal heterogeneity as
well as the sociodemographic variations regarding the pandemic propagation and
the non-pharmaceutical interventions. All mobility metrics adapted capture
decreased public movements after the national emergency declaration. The
population staying home has increased in all states and becomes more stable
after the stay-at-home order with a smaller range of fluctuation. There exists
overall mobility heterogeneity between the income or population density groups.
The public had been taking active responses, voluntarily staying home more, to
the in-state confirmed cases while the stay-at-home orders stabilize the
variations. The study suggests that the public mobility trends conform with the
government message urging to stay home. We anticipate our data-driven analysis
offers integrated perspectives and serves as evidence to raise public awareness
and, consequently, reinforce the importance of social distancing while
assisting policymakers.Comment: 11 pages, 9 figure
Rockefeller Foundation 2010 Annual Report
Contains president's letter; 2010 program highlights, including support for Africa's green revolution, sustainable and equitable transportation policy, and healthy communities; grants list; financial report; and lists of trustees and staff
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