Intelligent Transportation Systems

Framework for Developing a Regional System Architecture for Intelligent Transportation Systems

Daniel Rodríguez
Sussman, JM
1997

Defining an architecture for intelligent transportation systems (ITS) at the regional level, where most ITS deployment occurs, is constrained by jurisdictional, institutional, financial, political, and regulatory factors. These constraints provide opportunities for the architecture that go beyond its traditional role as a guiding tool for technology implementation to a newer role of reorienting institutional relationships. An architecture development approach is proposed that considers regional transportation needs and characteristics so as to increase the benefits from implementing...

Regional Intelligent Transportation Systems Architectures and the Competitive Region

Daniel Rodríguez
Muñoz-Loustaunau, A
Pendleton, T
Sussman, JM
1998

The role of an architecture for deploying intelligent transportation systems in finding solutions to regional transportation problems is analyzed. The concept of a competitive region, a region with changing economic interests, stakeholders, and borders, is reviewed. The competitive region motivates finding solutions to transportation problems of regional scope. The concept of a regional system architecture is then introduced as a catalyst for reaching coordinated regional solutions. The regional architecture’s flexibility and ability to bring different stakeholders together make it...

Application of Decision Analysis to Intelligent Transportation System Societal Issues. Final Report, 15 March 1996-14 March 1997

Richardson, BC
Albers, WA
Kostyniuk, LP
Barnes, MA
Daniel Rodriguez
1997

A demonstration of the use of decision analysis to address societal and institutional issues in an Intelligent Transportation System-based paratransit implementation was performed. A decision analysis technique called Multi-Organization Decision Analysis (MODA) was developed, and it is based on the Decision Risk Analysis process used widely in the private sector. Its objective is to facilitate consensus among the disparate public and private sector stakeholders in a decision process. The stakeholders are represented on a decision-making team, and they are supported by a team of...

ITS in Developing Countries: Strategic Opportunities

Richardson, BC
Daniel Rodriguez
1997

Development of intelligent transportation systems has taken on worldwide dimensions. For underdeveloped nations the desire to embrace ITS creates a formidable challenge. As noted by the authors, however, there is a window of opportunity for avoiding the costly mistakes while reproducing the successes experienced by industrialized countries. This article identifies potential obstacles, defines various strategies and suggests ITS can be used as an integrator to achieve true strategic regional plans so often neglected in developing areas.

Evaluation of the Advanced Operating System of the Ann Arbor Transportation Authority: Impacts of an Advanced Public Transportation System: Demonstration Project

Levine, J
Hong, Q
Hug, GE
Daniel Rodriguez
1999
In 1997, the Ann Arbor (Michigan) Transportation Authority began deploying a set of integrated advanced public transportation system technologies in its vehicles, stations and control center. This paper summarizes selected findings of a multidimensional evaluation of the effects of the system on schedule adherence and transfer time, passenger perception and impacts on drivers. Some improvement in on-time performance was observed in vehicle departures from major ...

Portable Global Positioning Units to Complement Accelerometry-Based Physical Activity Monitors

Daniel Rodriguez
Brown, AL
Troped, PJ
2005

This study examines the usefulness of complementing accelerometry-based physical activity measurement with spatial data from portable global positioning system (GPS) units to determine where physical activity occurs. Methods: First, using the geographic distribution of data points and Bland–Altman plots, we examined GPS units’ validity and interunit reliability by measuring the distance to a geodetic point. We also assessed interunit reliability by comparing GPS data collected in three built environment contexts. Second, we conducted a pilot study in which 35 participants wore GPS units...

Software Engineering with Computational Intelligence and Machine Learning (SECIML) PROGRAM COMMITTEE

Khoshgoftaar, TM
Benatallah, B
Cukic, B
Gao, K
Jahnke, J
Last, M
Lee, J
Lounis, H
McMinn, P
Musilek, P
Pedrycz, W
Daniel Rodriguez
Seliya, J
Shepperd, M
Twala, B
Xu, Z
2007

Provides a listing of current committee members.

A Comparison of GPS and Travel Diaries to Characterize Walking Behavior

Cho, G
Daniel Rodriguez
Clifton, KJ
Evenson, K
2008

While travel diaries are widely used to investigate walking behavior, the emergence of portable GPS units provides an innovative approach to characterizing walking behavior. This study compares the number and duration of daily walking trips reported in travel diaries with data extracted from a portable GPS unit and identified as the same walking trips. The study had two phases: (1) We used 35 person-days of travel data to determine the best algorithm for identifying walking trips from GPS data. The best algorithm had high Pearson (0.89) and Spearman correlation (0.85).

The Importance of Accurate Road Data for Spatial Applications in Public Health: Customizing a Road Network

Frizzelle, BG
Evenson, KR
Daniel Rodriguez
Laraia, BA
2009

Health researchers have increasingly adopted the use of geographic information systems (GIS) for analyzing environments in which people live and how those environments affect health. One aspect of this research that is often overlooked is the quality and detail of the road data and whether or not it is appropriate for the scale of analysis. Many readily available road datasets, both public domain and commercial, contain positional errors or generalizations that may not be compatible with highly accurate geospatial locations. This study examined the accuracy, completeness, and currency of...

Identifying Walking Trips Using GPS Data

Cho, GH
Daniel Rodriguez
Evenson, KR
2011

This study developed and tested algorithms to identify outdoor walking trips from portable global positioning system (GPS) units in free-living conditions. Methods: The study included a calibration and a validation phase. For the calibration phase, we determined the best algorithm from 35 person-days of data. Measures of agreement regarding the daily number and duration of diary-reported and GPS-identified trips were used. In the validation phase, the best algorithm was applied to an additional and separate 136 person-days of diary and GPS data. Results: The preferred algorithm in the...