Traffic congestion is one of the major problems facing transportation agencies, especially in urban areas. Agencies are exploring ways to use the existing transportation infrastructure efficiently by deploying appropriate traffic management strategies. One of these strategies is the use of express lanes, which are expected to effectively mitigate congestion and increase the reliability of highway facilities. Express lanes are managed toll lanes, separated from general-purpose lanes within a freeway facility. The goal of this study was to quantify the mobility benefits of express lanes by comparing the performance of express lanes with that of their adjacent general-purpose lanes, and by assessing the performance of the general-purpose lanes when the express lanes were open versus when the express lanes were closed. The Buffer Index (BI), a travel time reliability measure, was selected as the performance measure. The analysis was based on 95Express, express lanes along I-95 in Miami, Florida. Overall, the results indicated that BIs for the express lanes were significantly lower than the BIs for the general-purpose lanes, and the BIs for the general-purpose lanes were significantly lower when the express lanes were open compared with the periods when the express lanes were closed. The study results showed mobility improvements on both the express lanes and the general-purpose lanes, although the extent of the improvements varied by direction (i.e., northbound and southbound) and time of day (i.e., a.m. peak, p.m. peak, daytime off-peak, and nighttime off-peak). Transportation agencies may use these findings to quantify and evaluate the mobility benefits of the express lanes and the general-purpose lanes on express lane facilities.

交通拥堵是运输机构面临的主要问题之一，特别是在城市地区。代理机构正在探索通过部署适当的交通管理策略来有效利用现有交通基础设施的方法。这些策略之一是使用特快车道，有望有效缓解拥堵并提高公路设施的可靠性。快速车道是收费高速公路，与高速公路设施内的通用车道分开。这项研究的目的是通过比较快车道与其相邻的通用车道的性能，并评估快车道开放时与何时的通用车道的性能，来量化快车道的流动性收益。快车道已关闭。缓冲区索引（BI），选择了旅行时间可靠性指标作为性能指标。该分析基于佛罗里达州迈阿密市沿I-95的95Express快速通道。总体而言，结果表明，快车道开放时，快车道的BI显着低于通用车道的BI，而快车道开放时，通用车道的BI则显着降低。已关闭。研究结果表明，快速车道和通用车道的交通都得到了改善，尽管改善的程度因方向（即北行和南行）和一天中的时间（即上午高峰，下午高峰，白天休假）而异。高峰和夜间非高峰）。