Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data
Changes in lateral clearance are prone to drastic changes in the driving environment at the entrance and exit of the tunnel, which can cause a driver to become psychologically stressed and deviate from the center of a lane, thus creating a greater security risk. However, most of the existing regulat...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2021/5552099 |
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| _version_ | 1832564821903540224 |
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| author | Li Wan Mo Zhou Ge Liu Chang-An Zhang Ying Yan |
| author_facet | Li Wan Mo Zhou Ge Liu Chang-An Zhang Ying Yan |
| author_sort | Li Wan |
| collection | DOAJ |
| description | Changes in lateral clearance are prone to drastic changes in the driving environment at the entrance and exit of the tunnel, which can cause a driver to become psychologically stressed and deviate from the center of a lane, thus creating a greater security risk. However, most of the existing regulations and studies only focus on the horizontal and vertical alignment of the tunnel entrances and exits, and there are few studies on the influence of lateral clearance on driving behavior. This study hired 15 random subjects to conduct real vehicle tests in eight tunnels on expressways with 3 design speeds by using a CAN-OBD analyzer and steering wheel angle meter. First, in five lateral clearance variation schemes, different speed characteristic indicators and steering wheel angles were selected as the indicators of driving behavior. Second, the interactive influence of the design speed, lateral clearance, operating speed, steering wheel angle, and other indicators were analyzed. Finally, paired t-test analysis and Wilcoxon and Friedman nonparametric tests were used to compare the differences in various indicators among different lateral clearance schemes. The results showed that when the left lateral clearance is 1.5 meters, the operating speed is increased by 3.9%, while the standard deviation of speed is small, and the driving performance is higher. When the right lateral clearance is 1.75 and 2.00 meters, the operating speed is not much different. However, the latter’s speed standard deviation is smaller. By contrast, when the right lateral clearance is up to 2.25 m, the operating speed increases by 3.7%. However, the speed standard deviation also increases. Different lateral clearances have little effect on the steering wheel angle. The operating speed on the right side is higher and more stable when the design speed is 100 km/h. This study provides scientific suggestions for the setting of the lateral clearance of the tunnels. |
| format | Article |
| id | doaj-art-5c39929988944048a9f516b3f9ff2d74 |
| institution | Kabale University |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-5c39929988944048a9f516b3f9ff2d742025-02-03T01:10:08ZengWileyJournal of Advanced Transportation0197-67292042-31952021-01-01202110.1155/2021/55520995552099Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field DataLi Wan0Mo Zhou1Ge Liu2Chang-An Zhang3Ying Yan4Shandong Provincial Communication Planning and Design Institute CO., Ltd.,, Jinan, ChinaCollege of Transportation, Chang’an University, Xi’an, ChinaCollege of Transportation, Chang’an University, Xi’an, ChinaShandong Provincial Communication Planning and Design Institute CO., Ltd.,, Jinan, ChinaCollege of Transportation, Chang’an University, Xi’an, ChinaChanges in lateral clearance are prone to drastic changes in the driving environment at the entrance and exit of the tunnel, which can cause a driver to become psychologically stressed and deviate from the center of a lane, thus creating a greater security risk. However, most of the existing regulations and studies only focus on the horizontal and vertical alignment of the tunnel entrances and exits, and there are few studies on the influence of lateral clearance on driving behavior. This study hired 15 random subjects to conduct real vehicle tests in eight tunnels on expressways with 3 design speeds by using a CAN-OBD analyzer and steering wheel angle meter. First, in five lateral clearance variation schemes, different speed characteristic indicators and steering wheel angles were selected as the indicators of driving behavior. Second, the interactive influence of the design speed, lateral clearance, operating speed, steering wheel angle, and other indicators were analyzed. Finally, paired t-test analysis and Wilcoxon and Friedman nonparametric tests were used to compare the differences in various indicators among different lateral clearance schemes. The results showed that when the left lateral clearance is 1.5 meters, the operating speed is increased by 3.9%, while the standard deviation of speed is small, and the driving performance is higher. When the right lateral clearance is 1.75 and 2.00 meters, the operating speed is not much different. However, the latter’s speed standard deviation is smaller. By contrast, when the right lateral clearance is up to 2.25 m, the operating speed increases by 3.7%. However, the speed standard deviation also increases. Different lateral clearances have little effect on the steering wheel angle. The operating speed on the right side is higher and more stable when the design speed is 100 km/h. This study provides scientific suggestions for the setting of the lateral clearance of the tunnels.http://dx.doi.org/10.1155/2021/5552099 |
| spellingShingle | Li Wan Mo Zhou Ge Liu Chang-An Zhang Ying Yan Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data Journal of Advanced Transportation |
| title | Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data |
| title_full | Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data |
| title_fullStr | Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data |
| title_full_unstemmed | Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data |
| title_short | Interactive Influence Analysis of Tunnel Lateral Clearance on Driving Behavior Using Expressway Field Data |
| title_sort | interactive influence analysis of tunnel lateral clearance on driving behavior using expressway field data |
| url | http://dx.doi.org/10.1155/2021/5552099 |
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