主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2023, Vol. 39 ›› Issue (2): 100-106.doi: 10.3969/j.issn.1673-503X.2023.02.013

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那曲市公路交通事故不良天气高影响路段及其气象因素分析

央美1(),田华2(),达瓦泽仁1,郭本军1   

  1. 1. 那曲市气象局, 西藏那曲 852000
    2. 中国气象局公共气象服务中心, 北京 100081
  • 收稿日期:2022-06-22 出版日期:2023-04-28 发布日期:2023-05-20
  • 作者简介:央美,女,1978年生,正研级高级工程师,主要从事天气预报、气象服务、气候变化研究,E-mail: 22816733@qq.com|田华,女,正研级高级工程师,E-mail: 49840266@qq.com

Analysis of spatial and temporal changes of traffic accidents in road sections highly affected by severe weather conditions and their meteorological factors in Nagchu City

Men YANG1(),Hua TIAN2(),Tsering DAWA1,Ben-jun GUO1   

  1. 1. Nagchu City Meteorological Service, Tibet 852000, China
    2. Public Meteorological Service Center of China Meteorological Administration, Beijing 100081, China
  • Received:2022-06-22 Online:2023-04-28 Published:2023-05-20

摘要:

利用2017年1月至2020年6月天气原因导致的西藏那曲市公路交通事故资料,结合事故发生点临近的国家级气象站观测资料,对那曲市交通事故等级、时空分布特征和事故发生时的气象因素进行分析。结果表明:近3 a那曲市天气原因导致的交通事故呈逐年上升趋势。引发交通事故的天气类型占比从高到低依次为雪天、雨天、路面结冰、冰雹和雾天。交通事故数量具有明显的月、日变化特征,12月至次年3月和08:01—12:00为事故多发时段。事故多发路段主要为G109青藏线。冬季降水量逐年增加,地面0 cm平均温度逐年下降,是导致那曲市交通事故数逐年增加的主要气象因素。

关键词: 交通事故, 青藏公路, 川藏公路

Abstract:

Using the data on road traffic accidents caused by weather in Nagchu Municipality in Tibet from January of 2017 to June of 2020, as well as meteorological data from national-level meteorological stations near the accident sites, the grade and spatiotemporal distribution characteristics of the traffic accidents and their weather-related causes were analyzed.The results show that over the past three years, the weather-caused traffic accidents in Nagchu have been increasing year by year.The order of the ratio of weather conditions inducing traffic accidents from high to low is snow, rain, ice roads, hail, and fog.The number of traffic accidents features an obvious monthly and diurnal variation, and the time phase from 08:01 to 12:00 a.m.from December to next March is an accident-prone period.Accident-prone road sections are mainly the G109 Qinghai-Tibet Road.Increasing winter precipitation and decreasing average ground surface temperatures at 0 cm are the main meteorological reasons for the increase in the number of traffic accidents year by year.

Key words: Traffic accident, Qinghai-Tibet Highway, Sichuan-Tibet Highway

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