Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations
Sight obstructions along road curves can lead to a crash if the driver is not able to stop the vehicle in time. This is a particular issue along curves with limited available sight, where speed management is necessary to avoid unsafe situations (e.g., driving off the road or invading the other traff...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2024-02-01
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| Series: | Journal of Traffic and Transportation Engineering (English ed. Online) |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095756424000035 |
| _version_ | 1797300338704777216 |
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| author | Abrar Hazoor Alberto Terrafino Leandro L. Di Stasi Marco Bassani |
| author_facet | Abrar Hazoor Alberto Terrafino Leandro L. Di Stasi Marco Bassani |
| author_sort | Abrar Hazoor |
| collection | DOAJ |
| description | Sight obstructions along road curves can lead to a crash if the driver is not able to stop the vehicle in time. This is a particular issue along curves with limited available sight, where speed management is necessary to avoid unsafe situations (e.g., driving off the road or invading the other traffic lane). To solve this issue, we proposed a novel intelligent speed adaptation (ISA) system for visibility, called V-ISA (intelligent speed adaptation for visibility). It estimates the real-time safe speed limits based on the prevailing sight conditions. V-ISA comes with three variants with specific feedback modalities (1) visual and (2) auditory information, and (3) direct intervention to assume control over the vehicle speed.Here, we investigated the efficiency of each of the three V-ISA variants on driving speed choice and lateral behavioural response along road curves with limited and unsafe available sight distances, using a driving simulator. We also considered curve road geometry (curve direction: rightward vs. leftward). Sixty active drivers were recruited for the study. While half of them (experimental group) tested the three V-ISA variants (and a V-ISA off condition), the other half always drove with the V-ISA off (validation group). We used a linear mixed-effect model to evaluate the influence of V-ISA on driver behaviour.All V-ISA variants were efficient at reducing speeds at entrance points, with no discernible negative impact on driver lateral behaviour. On rightward curves, the V-ISA intervening variant appeared to be the most effective at adapting to sight limitations. Results of the current study implies that V-ISA might assist drivers to adjust their operating speed as per prevailing sight conditions and, consequently, establishes safer driving conditions. |
| first_indexed | 2024-03-07T23:05:49Z |
| format | Article |
| id | doaj.art-26cc6554cc1e4c11b607355a3381f9d1 |
| institution | Directory Open Access Journal |
| issn | 2095-7564 |
| language | English |
| last_indexed | 2024-03-07T23:05:49Z |
| publishDate | 2024-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Traffic and Transportation Engineering (English ed. Online) |
| spelling | doaj.art-26cc6554cc1e4c11b607355a3381f9d12024-02-22T04:52:02ZengKeAi Communications Co., Ltd.Journal of Traffic and Transportation Engineering (English ed. Online)2095-75642024-02-011111627Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitationsAbrar Hazoor0Alberto Terrafino1Leandro L. Di Stasi2Marco Bassani3Department of Environment, Land, and Infrastructure Engineering, Politecnico di Torino, Torino 10129, Italy; Road Traffic Division, Nord University, Stjørdal 7502, Norway; Corresponding author. Department of Environment, Land, and Infrastructure Engineering, Politecnico di Torino, Torino 10129, Italy.Department of Environment, Land, and Infrastructure Engineering, Politecnico di Torino, Torino 10129, ItalyMind, Brain, and Behavior Research Centre (CIMCYC), University of Granada, Granada 18071, SpainDepartment of Environment, Land, and Infrastructure Engineering, Politecnico di Torino, Torino 10129, ItalySight obstructions along road curves can lead to a crash if the driver is not able to stop the vehicle in time. This is a particular issue along curves with limited available sight, where speed management is necessary to avoid unsafe situations (e.g., driving off the road or invading the other traffic lane). To solve this issue, we proposed a novel intelligent speed adaptation (ISA) system for visibility, called V-ISA (intelligent speed adaptation for visibility). It estimates the real-time safe speed limits based on the prevailing sight conditions. V-ISA comes with three variants with specific feedback modalities (1) visual and (2) auditory information, and (3) direct intervention to assume control over the vehicle speed.Here, we investigated the efficiency of each of the three V-ISA variants on driving speed choice and lateral behavioural response along road curves with limited and unsafe available sight distances, using a driving simulator. We also considered curve road geometry (curve direction: rightward vs. leftward). Sixty active drivers were recruited for the study. While half of them (experimental group) tested the three V-ISA variants (and a V-ISA off condition), the other half always drove with the V-ISA off (validation group). We used a linear mixed-effect model to evaluate the influence of V-ISA on driver behaviour.All V-ISA variants were efficient at reducing speeds at entrance points, with no discernible negative impact on driver lateral behaviour. On rightward curves, the V-ISA intervening variant appeared to be the most effective at adapting to sight limitations. Results of the current study implies that V-ISA might assist drivers to adjust their operating speed as per prevailing sight conditions and, consequently, establishes safer driving conditions.http://www.sciencedirect.com/science/article/pii/S2095756424000035Sight distanceIntelligent speed adaptationDriver behaviourRoad safetyDriving simulationAdvanced driver assistance systems |
| spellingShingle | Abrar Hazoor Alberto Terrafino Leandro L. Di Stasi Marco Bassani Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations Journal of Traffic and Transportation Engineering (English ed. Online) Sight distance Intelligent speed adaptation Driver behaviour Road safety Driving simulation Advanced driver assistance systems |
| title | Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations |
| title_full | Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations |
| title_fullStr | Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations |
| title_full_unstemmed | Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations |
| title_short | Intelligent speed adaptation for visibility technology affects drivers’ speed selection along curves with sight limitations |
| title_sort | intelligent speed adaptation for visibility technology affects drivers speed selection along curves with sight limitations |
| topic | Sight distance Intelligent speed adaptation Driver behaviour Road safety Driving simulation Advanced driver assistance systems |
| url | http://www.sciencedirect.com/science/article/pii/S2095756424000035 |
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