Foggy weather can reduce visibility for drivers and one of the main consequences of this condition can be the change in behaviour regarding choice of speed, which will vary from driver to driver owing to their varying personal and socio-economic characteristics and driving experience. The aim of this study is to assess the effects of adverse weather conditions on speed-choice behaviour of drivers on a two-lane rural highway. Using a driving simulator, speed-choice behaviours of more than 75 licensed drivers/attendees were evaluated in six different weather scenarios. The socio-economic characteristics of drivers as well as their driving records (including accident rates) were also gathered. Using a binary logit model, the probability of choosing speeds faster than the 85th percentile speed was estimated. Light and heavy fog, driving experience and the rate of accident involvement were found to be significant as negative factors for speeding. In addition, it was found that the various speeds chosen by drivers were all reduced significantly in low lighting conditions, which might be a positive safety measure under such conditions.

中文翻译：

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分析多雾天气对两车道高速公路驾驶员选择速度的影响

多雾的天气会降低驾驶员的视野，并且这种状况的主要后果之一可能是速度变化的行为改变，由于他们的个人和社会经济特征以及驾驶经验的不同，不同驾驶员的行为也会有所不同。这项研究的目的是评估恶劣天气条件对两车道农村公路上驾驶员选择速度行为的影响。使用驾驶模拟器，在六种不同的天气情况下评估了超过75位持照驾驶员/参与者的选择速度行为。还收集了驾驶员的社会经济特征及其驾驶记录（包括事故率）。使用二进制logit模型，估计了选择速度快于第85个百分位速度的可能性。轻雾和大雾 驾驶经验和事故的发生率被认为是超速驾驶的不利因素。此外，还发现驾驶员在低光照条件下选择的各种速度都大大降低了，这在这种情况下可能是一种积极的安全措施。