823 research outputs found
Model Accuracy Data for Post-Construction Evaluation of Forecast Accuracy in Minnesota
No full textThis data was used for the project: Post-Construction Evaluation of Forecast Accuracy
Parthasarathi, Pavithra; Levinson, David (Minnesota Department of Transportation, 2009)This research evaluates the accuracy of demand forecasts using a sample of recently-completed projects in
Minnesota and identifies the factors influencing the inaccuracy in forecasts. The forecast traffic data for this study
is drawn from Environmental Impact Statements (EIS), Transportation Analysis Reports (TAR) and other forecast
reports produced by the Minnesota Department of Transportation (Mn/DOT) with a horizon forecast year of 2010
or earlier. The actual traffic data is compiled from the database of traffic counts maintained by the Office of
Transportation Data and Analysis at Mn/DOT. Based on recent research on forecast accuracy, the inaccuracy of
traffic forecasts is estimated as a ratio of the forecast traffic to the actual traffic. The estimation of forecast
inaccuracy also involves a comparison of the socioeconomic and demographic assumptions, the assumed networks
to the actual in-place networks and other travel behavior assumptions that went into generating the traffic forecasts
against actual conditions. The analysis indicates a general trend of underestimation in roadway traffic forecasts
with factors such as highway type, functional classification, and direction playing an influencing role. Roadways
with higher volumes and higher functional classifications such as freeways are subject to underestimation
compared to lower volume roadways/functional classifications. The comparison of demographic forecasts shows a
trend of overestimation while the comparison of travel behavior characteristics indicates a lack of incorporation of
fundamental shifts and societal changes.Minnesota Department of TransportationParthasarthi, Pavithra K; Levinson, David M. (2017). Model Accuracy Data for Post-Construction Evaluation of Forecast Accuracy in Minnesota. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/D6RW2Z
Verification of Cyber-Physical Systems (Dagstuhl Seminar 14122)
No full textCyber-physical systems refer to a new genre of engineered systems consisting of a tight coupling between computation, communication and physical entities. The main focus of the seminar was to discuss issues related to the reliable development of cyber-physical systems by using formal verification. This is a multi-disciplinary area requiring collaboration between areas focusing discrete systems analysis and continuous systems analysis. To this end, the seminar brought together researchers working in the fields of formal methods, control theory and hybrid systems to identify and discuss potential issues and research questions which require collaboration between the communities. This report documents the program and the outcomes of Dagstuhl Seminar 14122 "Verification of Cyber-Physical Systems"
Appendix_1_Survey – Supplemental material for How Pediatric Anesthesiologists Manage Children with OSA Undergoing Tonsillectomy
No full textSupplemental material, Appendix_1_Survey for How Pediatric Anesthesiologists Manage Children with OSA Undergoing Tonsillectomy by Christopher Roberts, Raihanah Al Sayegh, Pavithra Ranganathan Ellison, Khaled Sedeek and Michele M. Carr in Annals of Otology, Rhinology & Laryngology</p
Network structure and the journey to work: An intra-metropolitan analysis
No full textThis paper aims to look at the variation of network structure within a metropolitan area and relate it to observed travel, measured here as the average travel time to work. The Minor Civil Divisions (MCD) within the Twin Cities (Minneapolis, St. Paul) metropolitan area are chosen for this analysis. Quantitative measures, compiled from various sources, are used to capture the various aspects of network structure within each MCD. The variation of these measures within the metropolitan area is analyzed using spatial analyses. The measures of network structure are then related to observed travel using statistical regression models. The results confirm a relation between network structure and travel and point to the importance of understanding the underlying street network structure.RP Braun/CTS Chair in Transportation,
Florida Department of TransportationParthasarathi, Pavithra; Levinson, David M. (2012). Network structure and the journey to work: An intra-metropolitan analysis. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/179817
Organ Trade in India - The Grey Area
No full textMaster Thesis Abstract Institute of Political Studies Faculty of Social Sciences Charles University in Prague Author: Pavithra Ramesh Supervisor: Janusz Salamon, Ph.D. E-mail: [email protected] m E-mail: janusz.salamon@univ- oxford.com Phone: +420774960096 Phone: +420731816202 Specialisation: IEPS Defense Planned: June 2017 Topic: Bioethics is the study concerned with the implications of medical procedures, technologies and treatments from the perspective of ethics, philosophy, law and its implementation. It encompasses a wide range of ethical concerns in relation to organ transplants, genetic engineering, artificial reproduction, euthanasia etc. My thesis is an attempt to probe into certain ethical nuances amidst the technological advances in the field of medicine. Particularly, with respect to organ trade in India. Since the origin of medicine the primal goals have followed the Hippocratic Oath of "Cure sometimes, treat often, comfort always." (Adams 1891). The questions this perception of early medicine leaves us with are: Have we withdrawn from the compassion and ethics prescribed with the advent of advanced lab technology? What are the issues around organ trade in India? What causes these issues? And how can this be dealt with? The approach to pursue the answers for the above, revolves around..
Street Network Structure and Activity Spaces
No full textThis research analyzes the influence of network structure on household spatial patterns, as measured by activity spaces. The analysis uses street network and travel survey data from the Twin Cities and South Florida to compile measures of network structure. Statistical regression models test the relationship between network structure and travel. The results show that network design does influence travel, after controlling for other non-network based measures. Results from this analysis can be used to understand how changes in network can be used to bring about desired changes in travel behavior.Parthasarathi, Pavithra; Hochmair, Hartwig H; Levinson, David M. (2015). Street Network Structure and Activity Spaces. Retrieved from the University Digital Conservancy, http://dx.doi.org/10.1177/0042098014537956
Freeway Service Patrols: A Stated Preference Analysis of Insurance Values
No full textIn this chapter, a Stated Preference (SP) analysis was carried out to identify the factors that influence people to choose highway assistance services (FSP) over private assistance services (PAS). The Los-Angeles FSP was used as a test case and the B/C ratios were also calculated based on the utilitytheFSPprovidestoanindividual. Differentvalueswerechosenforthe average time of waiting of the FSP and the B/C ratios were calculated in each case. The results indicate that the probability of an individual choosing the highway assistance services depends on the attributes of the program like the time of waiting for assistance and cost of waiting for assistance. The B/C ratios for the Los Angeles FSP were in the range 6.2–6.3.California PATH Program, California Department of TransportationLevinson, David M; Parthasarathi, Pavithra; Gillen, David W. (2004). Freeway Service Patrols: A Stated Preference Analysis of Insurance Values. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/179876
Network Structure and Spatial Separation.
No full textThe objective of this research is to identify the role of network architecture in influencing individual travel behavior using travel survey data from two urban areas in Florida: Fort Lauderdale and Miami. Various measures of network structure, compiled from existing sources, are used to quantify roadway networks, capture the arrangement and connectivity of nodes and links in the networks and the temporal and spatial variations that exist among and within networks. The results from the regression models estimated show that network design influences how people travel and make decisions. Results from this analysis can be used to understand how changes in network can be used to bring about desired changes in travel behavior.Parthasarathi, Pavithra; Hochmair, Hartwig H; Levinson, David M. (2012). Network Structure and Spatial Separation.. Retrieved from the University Digital Conservancy, http://dx.doi.org/10.1068/b36139
Perceived parenting style, self-esteem and socio-economic status in juvenile delinquents
No full textPavithra. M , Dr. Vijayalaya Sriniva
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