Data underlying the publication: Speed development at freeway curves based on high frequency floating car data

Flooating Car Data in 153 curves in The Netherlands were collected at a resolution of 1 Hz and were filtered on free-flow periods, to analyse over 800 thousand unique continuous free-flow speed observations on these curves. These speed profiles were aggregated to specific break points along the speed profile, and per curve the 85th percentile was extracted. These speeds and positions are given in this database, along with relevant curve characteristics. The variables are explained in an additional sheet.<br>More backgrounds can be read in:<br>Vos, J., &amp; Farah, H. (2022). Speed development at freeway curves based on high frequency floating car data. European Journal of Transport and Infrastructure Research, 22(2), 201-223. doi:10.18757/ejtir.2022.22.2.6114

本数据集采集了荷兰153个弯道的浮动车数据（Floating Car Data），采集分辨率为1赫兹，并针对自由流时段进行了筛选，以分析这些弯道上超过80万条独立连续的自由流速度观测值。
研究将这些速度剖面聚合至沿速度分布的特定断点处，并针对每个弯道提取了第85百分位速度。
本数据库中提供了上述速度值、对应位置信息以及相关的弯道特征，变量说明详见附加工作表。
更多背景信息可参阅：
Vos, J., & Farah, H. (2022). 基于高频浮动车数据的高速公路弯道速度演化规律. 欧洲交通与基础设施研究期刊（European Journal of Transport and Infrastructure Research）, 22(2), 201-223. DOI: 10.18757/ejtir.2022.22.2.6114