Previous Experimentation and the History of Color Application in North America
Cities in North America have been experimenting with the application of colored pavement, primarily to highlight bicycle motor vehicle conflict areas since the mid 1990’s, the application of color to an entire corridor is a more recent practice. Between 1997 and 1999, the City of Portland, with support from the Federal Highway Administration (FHWA), conducted an experiment in which 10 conflict areas were marked with blue paint or thermoplastic and accompanying signing. (City of Portland Office of Transportation. (1999). Portland’s Blue Bike Lanes., US Department of Transportation. (2000). Evaluation of Blue Bike Lane Treatment used in Bicycle-Motor Vehicle Conflict Areas in Portland, Oregon.)
The study results demonstrated that thermoplastic was more durable than paint, which disappeared after the first winter season. The experiment reported positive results for decreased cyclist and motor vehicle driver conflicts at the ten study sites, but the treatments applied were less visible than desired in low light conditions.
Subsequent to Portland’s blue bike lane experiment, the FHWA approved interim experiments utilizing green colored pavement in communities across the US including Chicago (IL), New York (NY), St. Petersburg (FL), San Francisco (CA), Columbia (MO), Long Beach (CA), Austin (TX), Nashville (TN), Missoula (MT), Golden (CO), the Minnesota Department of Transportation (for Minneapolis), and the Pennsylvania Department of Transportation. (University of North Carolina Highway Safety Research Center. (2008). Evaluation of a Green Bike Lane Weaving Area in St. Petersburg, Florida.)
Green was selected over blue or red because in the US blue roadway markings are reserved to designate accessibility parking while red markers are sometimes used to alert motorists of wrong way driving. Interim approval for the optional use of green pavement for bike lanes was granted on April 15, 2011.
自20世纪90年代中期以来，北美城市一直在尝试使用彩色路面，主要是为了突出自行车机动车辆冲突地区，将颜色应用于整个走廊是最近的做法。1997年至1999年间，波特兰市在联邦公路管理局（FHWA）的支持下，进行了一项实验，其中10个冲突地区用蓝色油漆或防滑型热熔型预成型彩色路面。 （波特兰市交通局。（1999）. 波特兰的蓝色自行车道.， 美国交通部.（2000）. 俄勒冈州波特兰市自行车-机动车辆冲突地区使用的蓝色自行车道处理的评估.
研究结果表明，防滑型热熔型预成型比油漆更耐用，油漆在第一个冬季后消失了。该实验报告了在十个研究地点减少骑自行车者和机动车辆驾驶员冲突的积极结果，但所应用的处理效果在低光照条件下不如预期那么明显。
在波特兰的蓝色自行车道实验之后，FHWA批准了在美国各地的社区使用绿色人行道的临时实验，包括芝加哥（IL），纽约（NY），圣彼得堡（佛罗里达州），旧金山（CA），哥伦比亚（MO），长滩（CA），奥斯汀（德克萨斯州），纳什维尔（田纳西州），米苏拉（MT），戈尔登（CO），明尼苏达州交通部（明尼阿波利斯）和宾夕法尼亚州交通部。 （北卡罗来纳大学公路安全研究中心。（2008）. 佛罗里达州圣彼得堡绿色自行车道编织区的评估。
之所以选择绿色而不是蓝色或红色，是因为在美国，蓝色道路标记被保留用于指定无障碍停车，而红色标记有时用于提醒驾驶者错误的方式驾驶。2011年4月15日，自行车道可选使用绿色路面的临时批准获得批准。
京公网安备 11010602007564号