Publications by Abhay Lidbe
Journal of Transport Geography, 2019
Transport contributes to socioeconomic development. In the case of rapidly developing and rapidly... more Transport contributes to socioeconomic development. In the case of rapidly developing and rapidly motorizing societies like India, increased mobility brings an increased burden associated with road crashes and their social and economic consequences. The Sustainable Development Goals (SDG) explicitly address road safety as necessary to achieving targets related to good health (SDG 3) but also as part of the targets leading towards more sustainable cities and communities (SDG 11). We apply Seemingly Unrelated Regression to investigate development-related factors that potentially contribute to differences among urban and rural road crash outcomes using open data sets for 35 states and territories in India. Results indicate that there are relationships among development and crash parameters common to both urban and rural areas. Interestingly, the results indicate different development indicators driving differences in crash outcomes in rural versus urban areas. Study findings are supportive of international efforts to better understand complex relationships among the goals and targets set out in the SDGs and other high-level declarations such as the New Urban Agenda. It is hoped this paper adds a new perspective on road safety within sustainable development discussions and encourages interdisciplinary research to further explore these relationships across various regions, countries, and contexts.
Journal Articles by Abhay Lidbe
ASCE Journal of Transportation Engineering, 2018
Adaptive traffic control systems (ATCS) continuously adapt to changing traffic in order to improv... more Adaptive traffic control systems (ATCS) continuously adapt to changing traffic in order to improve traffic performance at signalized intersections. Typical before-after studies evaluate the success of ATCS deployments by assessing only the postimplementation traffic performance. Fully assessing the feasibility of ATCS implementation, however, requires evaluating the changes in long-term ATCS performance with changing traffic demands. This paper illustrates the assessment of long-term ATCS performance of two study corridors. The study uses volume=capacity (v=c) ratio to evaluate the effects of changing corridor flow on corridor-wide delay benefits. The results show that the Sydney Coordinated Adaptive Traffic System (SCATS) improves corridor flow and decreases corridor-wide delays up to a point of ineffectiveness, beyond which the ATCS performance begins to decrease. The ineffectiveness point helps in deriving a reasonable estimate for the magnitude and duration of potential ATCS deployment benefits.
Transportation Research Interdisciplinary Perspectives, 2020
The study explores the recent trends in school travel using the 2017 National Household Travel Su... more The study explores the recent trends in school travel using the 2017 National Household Travel Survey data. The study also investigates the exogenous factors affecting the school travel mode choice using random parameters multinomial logit (RPMNL) model. The results indicate that urban school trips range between 3 and 5 miles, whereas, average rural trips are longer than 6 miles. School commute times are higher among lower-income households. Further, the share of school bus and auto has declined while that of walking and biking has increased in 2017. This change is significant among high school students. Like other studies, the findings of the RPMNL model confirm that students within shorter distances from school are more likely to walk or bike to school. However, the likelihood of riding a school bus for distances >15 miles is higher than that of auto, indicating a policy implication to support school transportation budgets, especially in rural school districts. Lower-income households have a higher likelihood of riding the school bus. Females are more likely to use a car and less likely to bike to school. Interestingly, households with more than three vehicles are more likely to use the school bus compared to no-vehicle households. Children living in rented houses are less likely to ride the school bus or car. Also, an increase in gas price is indirectly but positively linked with walking, biking, and auto use. The findings from this study will assist policymakers in formulating policies and planning decisions towards improvements in the current school travel trends.
Papers by Abhay Lidbe
International Journal of Business Intelligence Research
The purpose of this paper is to gain insights from the online product reviews of e-commerce sites... more The purpose of this paper is to gain insights from the online product reviews of e-commerce sites such as Flipkart and Amazon and analyze its impact on third party sellers. To judge the authenticity of a product, reviews are more useful than ratings, since ratings do not give a complete picture. It is always preferred to consider both the product and seller reviews to have a seamless delivery and defect less product. In this paper, natural processing methods are used to gain insights by considering online reviews of a product. Methods such as sentiment analysis, bag of words model help to understand the impact of online product reviews on the seller's ratings and their performance over some time. The reviews are categorized into positive, negative, and neutral using sentiment analysis. Further, topic modeling is done to find out the topic reviews are majorly referring to. The seller reviews for a specific product after analysis are compared with the overall seller reviews to jud...
arXiv (Cornell University), Aug 19, 2021
Journal of Legal Affairs and Dispute Resolution in Engineering and Construction, Apr 30, 2024
Social Science Research Network, 2022
Traffic Injury Prevention, Feb 8, 2023
Journal of urban mobility, Dec 1, 2022
Future Transportation
Recent studies suggest that advances in rear seat occupant protection are trailing while frontal ... more Recent studies suggest that advances in rear seat occupant protection are trailing while frontal crash prevention technologies have disproportionately improved front seat occupant safety. Therefore, the first objective of this study is to identify the safest seat for children by estimating injury severity by seat position using current crash data. The second objective of this study is to demonstrate that Level-2 and above (i.e., L2+) AVs will be significantly different from current vehicles regarding child injury severity, and therefore it is essential to find the safest seat for children in L2+ AVs. This study utilized data from the National Automotive Sampling System (NASS) to estimate crash injury severity by seat position in children. This study used the Injury Severity Score (ISS) as its measure of crash severity. The mean ISS for restrained children sitting in the front passenger seat was 0.494 (for model year > 2000 vehicles). The mean ISSs for second-row left and second-r...
Aging & Mental Health
Traffic Injury Prevention
Advances in transportation studies, 2020
Safety
Although the school bus is considered a safe form of transportation, school bus crashes are a maj... more Although the school bus is considered a safe form of transportation, school bus crashes are a major safety concern. School bus crashes are a result of driver error of either the at-fault school bus or another at-fault vehicle (where the school bus is not at fault). To examine the risk factors associated with school bus related crashes and crash outcomes, this study segments and develops two binary logit models for each school bus crash type. A total of 1702 school bus related crashes recorded between 2009 and 2016 were used to estimate the model. According to the model results, sideswipe collisions were less likely to result in injury outcomes for at-fault school buses than rear-end and side-impact collisions. Speeding, driving impaired or under the influence, and negotiating a curve all have significant positive associations with injury outcomes in not-at-fault school bus crashes. This study’s practical implications include enforcing the school bus safe driving guidelines, training...
The British Journal Of Social Work, 2021
The present study utilised the social determinants of health (SDH) framework to see whether indic... more The present study utilised the social determinants of health (SDH) framework to see whether indicators of the framework have an impact on anxiety and depression of people living in rural Black Belt communities in Alabama. Data from a convenient sample of 159 African-Americans aged 18 or older were from two sites in rural Alabama. The levels of anxiety and depression were measured by the Patient Health Questionnaire-9 (PHQ9). Multiple linear regression model was used to examine the association between SDH and anxiety and depression level of participants. The mean PHQ9 score of participants was 5.57 out of twenty-seven. Four SDH were significantly related to PHQ9 levels amongst participants: participants with higher food insecurity scores, higher transportation needs and higher threats to interpersonal safety tended to have higher scores in PHQ9. Moreover, health literacy levels were negatively associated with PHQ9 scores amongst participants. Our study highlights understanding SDH sp...
Journal of Transportation Safety & Security
SSRN Electronic Journal, 2022
Journal of Transportation Engineering, Part A: Systems, 2021
AbstractThe emerging connected vehicle (CV) technology has introduced the opportunity to improve ... more AbstractThe emerging connected vehicle (CV) technology has introduced the opportunity to improve traditional traffic signal operation. Real-time vehicle trajectory information (location, speed, and...
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Publications by Abhay Lidbe
Journal Articles by Abhay Lidbe
Papers by Abhay Lidbe