Assessment of Level-of-Service on Urban Arterials: A Case Study in Kolkata Metropolis

Biswas, Subhadip; Singh, Bir; Saha, Arpita

doi:10.7708/ijtte.2016.6(3).06

Cited by 16 publications

(3 citation statements)

References 5 publications

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“…On the other hand, our results show that most environments in which the relative exposure of female drivers is higher are a priori related to a lower risk of crash-related fatalities or severe injuries (e.g., urban areas, daytime, good light conditions, weekdays, or good infrastructure) [ 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. Accordingly, several previous studies have found a higher degree of self-regulation (i.e., restricting driving exposure to avoid risky driving circumstances) in women, especially among older ones, perhaps due to less driving experience and self-confidence or higher driving-related anxiety [ 34 , 35 , 39 , 44 ].…”

Section: Discussionmentioning

confidence: 86%

Sex Differences in the Amount and Patterns of Car-Driving Exposure in Spain, 2014 to 2017: An Application of a Quasi-Induced Exposure Approach

Mateos-Granados

Martín-delosReyes

Rivera-Izquierdo

et al. 2021

IJERPH

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We designed a cross-sectional study in Spain, from 2014 to 2017. Our objective was to assess sex-related differences in the amount of driving exposure of car drivers, overall and stratified by the main environment-related driving conditions. We compared the sex distribution across three populations: (1) total number of person-years aged > 18 years; (2) total number of person-years aged > 18 years holding a valid car-driving license; and (3) total number of non-responsible car drivers involved in crashes with another offending driver, stratified by different environmental variables. The quasi-induced exposure approach was applied: the non-responsible drivers were considered as representative of the entire population of drivers on the road at the place and time at which the crash occurred. We calculated the female-to-male odds ratio (OR) by comparing population 2 versus 1, and population 3 versus 2. Finally, we performed separate regression models in population 3 for each environment-related variable as the dependent variable and driver’s age and sex as the independent variables. The female-to-male OR for the first comparison was 1.12, but values below 1 were found for extreme age groups. In the second comparison, an OR of 0.50 (0.49–0.51) was found, with progressively lower OR values as age increased. In population 3, women were found to drive less than men in environments known to be high risk (i.e., open roads, night-time, poor light conditions, and weekends). A significant gender gap exists in the amount and type of driving exposure. Although women obtain a driving license more frequently than men, they drive much less and tend to avoid high-risk environments. These results emphasize the need to incorporate a gender perspective in the development and implementation of road safety interventions.

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Section: Discussionmentioning

confidence: 86%

Sex Differences in the Amount and Patterns of Car-Driving Exposure in Spain, 2014 to 2017: An Application of a Quasi-Induced Exposure Approach

Mateos-Granados

Martín-delosReyes

Rivera-Izquierdo

et al. 2021

IJERPH

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“…Biswas et al [15] conducted field investigations in Kolkata metropolis city, utilizing a video graphic approach to observe and collect traffic flow characteristics on urban arterials. The obtained data, such as mean speed, standard deviation, and coefficient of variation, have been paired with standard values.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluation of Capacity and Level of Service for Heterogeneous Traffic of Urban Multi-Lane Highways

Salam

Majid

2022

Constr.

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This study aimed to evaluate the capacity and level of service of urban multi-lane highway where the traffic composition is not uniform. Capacity is the greatest sustainable hourly flow rate, and the level of service is a performance measure used for assessing the quality of road service. In this study the last methodology of HCM2016 was used. Data collection was done on four different segments chosen to be suitable with the highway capacity manual conditions. Traffic volumes have been collected using two different techniques; moving car method and the stationary method. All the required geometric parameters have also been measured. The peak hour factor has been found for all the segments. The spot speed was used to check the speed limit (mounted speed) and to find free flow speed. At the end, the level of service and capacity for the segments were found. The level of services of most of the segments is between C and D. The base capacity of the segments is between 1850 to 1900 pc/h/ln.

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“…Therefore, the values of K 3 in Table 4 depend on the typical observed traffic fluidity and the number of daylight hours with congested traffic flow. The term "congested flow" complies with the methodology proposed by [45] to evaluate the level of service of an urban arterial: this condition occurs when the percentage speed reduction from free flow speed appears greater than 50%. The hazardousness factor K 4i depends on the expected fatality induced by the defect i on vulnerable road users.…”

Section: Users Observed Condition Traffic Flow Condition Code K 2 Valuesmentioning

confidence: 99%

Road Safety Analysis of Urban Roads: Case Study of an Italian Municipality

Demasi

Loprencipe

Moretti

2018

Safety

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Attention to the most vulnerable road users has grown rapidly over recent decades. The experience gained reveals an important number of fatalities due to accidents in urban branch roads. In this study, an analytical methodology for the calculation of urban branch road safety is proposed. The proposal relies on data collected during road safety inspections; therefore, it can be implemented even when historical data about traffic volume or accidents are not available. It permits us to identify geometric, physical, functional, and transport-related defects, and elements which are causal factors of road accidents, in order to assess the risk of death or serious injuries for users. Traffic volume, average speed, and expected consequences on vulnerable road users in case of an accident allow us to calculate both the level of danger of each homogeneous section which composes the road, and the hazard index of the overall branch. A case study is presented to implement the proposed methodology. The strategy proposed by the authors could have a significant impact on the risk management of urban roads, and could be used in decision-making processes to design safer roads and improve the safety of existing roads.

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Assessment of Level-of-Service on Urban Arterials: A Case Study in Kolkata Metropolis

Cited by 16 publications

References 5 publications

Sex Differences in the Amount and Patterns of Car-Driving Exposure in Spain, 2014 to 2017: An Application of a Quasi-Induced Exposure Approach

Sex Differences in the Amount and Patterns of Car-Driving Exposure in Spain, 2014 to 2017: An Application of a Quasi-Induced Exposure Approach

Evaluation of Capacity and Level of Service for Heterogeneous Traffic of Urban Multi-Lane Highways

Road Safety Analysis of Urban Roads: Case Study of an Italian Municipality

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