Speeding in a work zone needs to be tackled effectively to enhance work zone safety. This study evaluates the influence of three different work zone signs—speed photo enforced signs, dynamic speed display signs and reduced speed limit signs—on driver speeding behavior using a medium-fidelity driving simulator. The speed photo enforced and reduced speed limit signs were placed at intervals before the start of the work zone and in the work zone. A virtual work zone network was built to replicate the Baltimore–Washington Parkway (MD-295). A total of 66 participants from different socioeconomic backgrounds participated in 264 driving simulation sessions. The speeds were measured over four phases: initial speed area, sign visible area, sign readable area and post sign area. An analysis of variance and post hoc analysis showed that the speed photo enforced sign was the most effective of the three signs. The second speed photo enforced sign within the work zone was more effective at reducing speed than the sign before the start of the work zone, especially in the post sign area. It was observed that female participants tend to slow down more when encountering a speed photo enforcement sign.

中文翻译：

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工作区指示牌对驾驶员超速行为的影响

需要有效解决工作区中的提速问题，以提高工作区的安全性。这项研究使用中等逼真的驾驶模拟器评估了三个不同的工作区标志（速度照片强制标志，动态速度显示标志和减小的速度限制标志）对驾驶员超速行为的影响。在工作区开始之前和工作区中，间隔一定时间放置了强制执行速度照片和减小速度限制的标志。建立了虚拟工作区网络来复制巴尔的摩-华盛顿公园大道（MD-295）。来自不同社会经济背景的66名参与者参加了264次驾驶模拟课程。在四个阶段对速度进行了测量：初始速度区域，标志可见区域，标志可读区域和标志后区域。方差分析和事后分析表明，速度照片强制征是三个征兆中最有效的。在工作区域内的第二个速度照片强制标志比在工作区域开始之前的标志在降低速度方面更为有效，尤其是在后标志区域。据观察，女性参与者在遇到快速照片执行标志时往往会放慢速度。