全国多地的斑马线在雨天暴露出严重的防滑隐患，导致行人和骑车人频繁滑倒摔伤。上海市12345热线近三年共收到279件道路标线问题工单，其中85件造成了滑倒、受伤等实际人身伤害1。至少有14项来自各级人大代表与政协委员的建议和提案指向这一问题1。
防滑性能严重不足是主要根源。国内各等级公路施划的热熔反光标线现场实测抗滑值普遍在20至30BPN之间，低于国家标准1。其中上海黄浦区一处路口的斑马线抗滑值为42BPN，同样未达标准1。这一状况的出现与标线材料的工艺缺陷密切相关：用于增强反光效果的玻璃微珠在雨天沾水后会大幅降低摩擦力1。
这类事故已有真实案例。2025年11月6日，杭州市王女士骑共享单车经过拐弯口时，车轮压上斑马线后打滑摔倒1。类似的问题早已引起关注——早在2012年，上海市人大代表就曾就此提交书面意见，当时上海市公安局答复将在100个路口使用新材料施划标线1。
Thermoplastic reflective road markings across Chinese cities are creating dangerous conditions during rainfall, with pedestrians and cyclists frequently slipping and falling on wet pavement.1 Shanghai's 12345 citizen hotline received 279 work orders related to road marking issues over the past three years, with 85 cases resulting in actual injuries including falls and accidents.1
The root cause lies in the materials used to enhance reflectivity. Glass microspheres embedded in these markings significantly reduce friction when wet, leading to poor anti-skid performance.1 Testing of thermoplastic reflective markings on roads nationwide revealed anti-skid values generally measured at or below 40 BPN (a scale where higher numbers indicate better grip), with most ranging between 20 and 30 BPN—falling short of national standards.1 At one intersection in Huangpu District, measurements showed an anti-skid value of 42 BPN, three points below the required standard.1
The problem has drawn attention from multiple levels of government, with at least 14 representatives from people's congresses and political consultative conferences at various administrative levels submitting proposals and motions addressing road marking anti-skid concerns.1 As early as 2012, a Shanghai municipal people's congress representative raised this issue formally, and Shanghai's Public Security Bureau responded by pledging to apply new materials for road markings at 100 intersections.1 More recently, on November 6, 2025, a woman surnamed Wang in Hangzhou fell after her shared bicycle wheel slipped on a zebra crossing while turning.1
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