| 引用本文: | 程国柱,吴立新,秦丽辉,刘博通.城市道路人行横道处驾驶人决策行为规律及损失[J].哈尔滨工业大学学报,2015,47(9):63.DOI:10.11918/j.issn.0367-6234.2015.09.012 |
| CHENG Guozhu ,WU Lixin,QIN Lihui,LIU Botong.Drivers’ decision behavior rule and loss at urban road crosswalk[J].Journal of Harbin Institute of Technology,2015,47(9):63.DOI:10.11918/j.issn.0367-6234.2015.09.012 |
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| 摘要: |
| 为给驾驶人在城市道路人行横道处安全通行提供决策依据,通过进行驾驶人决策与风险感知试验,对驾驶人的感知风险及决策行为进行分析. 给出了驾驶人感知风险随机动车速度变化的规律及驾驶人决策行为的损失函数,基于概率论构建了驾驶人碰撞风险概率模型,并标定了在不同车速等级下的行车延误和碰撞风险损失. 研究结果表明：当行车速度较低时,驾驶人采取匀速和加速为较优策略,而减速则会增加损失；当行车速度处于中等时,驾驶人采取加速、减速、匀速策略损失相差不大,但以匀速较优；当行车速度较高时,驾驶人对于自身的最优策略应该是保持匀速通过. |
| 关键词: 城市道路 人行横道 驾驶人 决策行为 损失函数 交通安全 |
| DOI：10.11918/j.issn.0367-6234.2015.09.012 |
| 分类号:U491 |
| 基金项目:国家自然科学基金(51108136); 吉林省自然科学基金(201215176). |
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| Drivers’ decision behavior rule and loss at urban road crosswalk |
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CHENG Guozhu 1, WU Lixin2, QIN Lihui3, LIU Botong1
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(1. School of Transportation Science and Engineering,Harbin Institute of Technology,150090 Harbin,China; 2. School of Transportation Science and Engineering,Jilin Jianzhu University, 130018 Changchun, China; 3. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, 150030 Harbin, China)
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| Abstract: |
| In order to provide decision for drivers at urban road crosswalk, experiment of driver’s decision and risk perception was conducted. And driver’s perceptional risk and decision were analyzed. Changing rule of driver perceptional risk with speed variation was given, and driver’s decision loss function was put forward. Collision risk probability model was established based on probability theory. Loss for delay and collision risk was calibrated respectively. The redult is that driver should keep uniform speed or accelerate at low speed, and deceleration will increase loss; at medium speed, there is no evident difference for driver among acceleration, deceleration and keeping uniform speed, but keeping uniform speed is better; at high speed, the best solution is keeping uniform speed. |
| Key words: urban road crosswalk driver decision behavior loss function traffic safety |
