The effects of lane width, shoulder width, and road cross-sectional reallocation on drivers’ behavioral adaptations

Mecheri, Sami; Rosey, Florence; Lobjois, Régis

doi:10.1016/j.aap.2017.04.019

Cited by 73 publications

(43 citation statements)

References 14 publications

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“…the edge of the asphalt) and cycled up to 1 km/h slower on average compared to the control condition. This finding is similar to the behaviour of car drivers, as multiple studies such as Bella (2013) and Mecheri, Rosey, and Lobjois (2017) found that increasing the size of the shoulder is related to a lateral position shift towards the edge of a road. A possible explanation for the decreased lateral distance could be that the cyclists experience the shoulder strips as clear zones, similar to the effect of car drivers who are positioned closer to the edge of a road when there is less vegetation or when there are less trees or other objects near a road's edge (Fitzpatrick, Samuel and Knodler 2016).…”

Section: Main Findingssupporting

confidence: 81%

“…This could mean that the edge strip is effective in moving a cyclist away from the verge without paving an additional strip next to the cycle path. This treatment is therefore more a relocation rather than a creation of space, and these effects are similar to increasing the size of the shoulder of car drivers by shifting the edge line towards the centre of the road (Mecheri, Rosey, and Lobjois 2017).…”

Section: Main Findingsmentioning

confidence: 99%

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Cycling on the edge: the effects of edge lines, slanted kerbstones, shoulder, and edge strips on cycling behaviour of cyclists older than 50 years

et al. 2020

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To prevent single-bicycle crashes, this study is the first to evaluate effects of slanted kerbstones, edge lines, shoulder strips, and edge strips on cycling behaviour of cyclists !50 years. In Experiment 1, 32 participants cycled on a control path and paths with edge lines, slanted kerbstones, and three types of 0.5 m wide shoulder strips (with grey artificial grass, green artificial grass, or concrete street-print). In Experiment 2, 30 participants cycled a different route including a control path and paths with edge lines or 0.3 m white edge strips. Cyclists rode closer to the main cycle path's edge in the shoulder strips conditions, although the presence of these strips resulted in a larger total distance to the verge compared to the control condition. Furthermore, cyclists cycled further from the verge in the edge strip condition than the control condition. Safety implications of the shoulder and edge strips are considered to be positive.

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Section: Main Findingssupporting

confidence: 81%

Section: Main Findingsmentioning

confidence: 99%

Cycling on the edge: the effects of edge lines, slanted kerbstones, shoulder, and edge strips on cycling behaviour of cyclists older than 50 years

et al. 2020

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“…Although an increase in the width of the longitudinal road markings generates a perception of narrowing of the lane, the influence of road lane width in road safety is still under study. For example, Mecheri et al [32] focused on the effects of lane width for the positioning of drivers within the lane. Their results confirmed that lane-width reduction made drivers stay closer to the road's center in most traffic situations.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of Wider Longitudinal Road Markings on Vehicle Speeds in Two-Lane Rural Highways

et al. 2020

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Longitudinal road markings are a valuable aid in driving guidance. An increase in their width may influence driving and, therefore, road safety. Wider road markings generate a perception of a narrowing lane, which may induct drivers to reduce speed. The present study tries to verify if an increased width of longitudinal road markings actually helps one to drive more slowly, and consequently leads to enhanced road safety. For this purpose, three curves with reduced visibility were selected and driving speed was measured with normal and modified (wider) longitudinal road markings. The results showed a speed reduction effect of around 3.1% with wide road markings. The speed-reducing effect of wide marks was greater during weekends and with more intense traffic volume, while it was slightly attenuated by night. Finally, the calculation of some standard cases on a working day, and considering average traffic volume, gave the following speed reductions during the day and at night, respectively: for light vehicles, 2.24% and 1.96%; for heavy vehicles, 2.46% and 2.15%. In view of the results obtained, it may be said that using wide road markings can help reduce vehicle speed, thereby contributing to reduced traffic accidents and making road transport more sustainable.

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“…Lane width is an important factor, as varied as the scenes, in the lateral control as the lane helps drivers operate vehicles closer to the center of the lane [20]. This example implies the collected data can support the research on lateral control and decision for AD.…”

Section: Lane Width Statisticsmentioning

confidence: 87%

Preliminary establishment and analysis of automated driving benchmark in China

Xiong

Wang

et al. 2019

MATEC Web Conf.

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In order to promote the localization of Automated Driving (AD) in China, it is necessary to collect large-scale traffic scene data with Chinese characteristic for future analysis. In this paper, we propose the methodologies and rules of establishing AD benchmark involving how to configure sensors, how to design the collection schema to show Chinese traffic characteristics and the rules of elaborating distinctive scenes and routes, what to label, and it is also demonstrated that the benchmark can support the future application of extended AD research. Data collection lasted about one month covering diverse scene data such as campus, highway, park, etc. from three representative Chinese cities and driving data from 30 different drivers. Moreover, some statistical results and analyses are produced in accordance with the designed methodologies as instances of potential application. Up to now, the dataset contains about 7,000 labelled image frames and corresponding LiDAR, GPS and Controller Area Network (CAN) data. Labels cover scene type, road user, traffic sign, traffic light, and lane marker. This benchmark can help researchers better understand Chinese traffic situation in aspects of environmental perception, driving behavior analysis, risk assessment, automated vehicle decision and control.

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The effects of lane width, shoulder width, and road cross-sectional reallocation on drivers’ behavioral adaptations

Cited by 73 publications

References 14 publications

Cycling on the edge: the effects of edge lines, slanted kerbstones, shoulder, and edge strips on cycling behaviour of cyclists older than 50 years

Cycling on the edge: the effects of edge lines, slanted kerbstones, shoulder, and edge strips on cycling behaviour of cyclists older than 50 years

Influence of Wider Longitudinal Road Markings on Vehicle Speeds in Two-Lane Rural Highways

Preliminary establishment and analysis of automated driving benchmark in China

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