蒙氏教具立方体教案:哪位大哥帮我翻译下 谢谢11

来源:百度文库 编辑:杭州交通信息网 时间:2024/04/20 02:40:08
Traffic management
Objectives
Traffic management arose from the need to maximize the capacity of existing highway networks within finite budget and, therefore, with a minimum of new construction . methods , which were often seen as a quick fix ,required innovation solutions and new technical developments . many of the techniques devises affected traditional highway engineering and launched imaginative and cost effective junction designs .introduction of signal – controlled pedestrian crossings not only improved the safety of pedestrians on busy roads but improved the traffic capacity of roads by not allowing pedestrians to dominate the crossing point .
More recently the emphasis has moved away from simple capacity improvements to accident reduction ,demand restraint ,public transport priority ,environment and restoring the ability to move around safely and freely on foot and by pedal cycle .
Demand management
There has been a significant shift in attitudes away from supporting unrestricted growth in highway capacity .the potential destruction of towns and cities and the environmental damage to rural areas are not acceptable to a large proportion . Traffic management has , largely , maximized the capacity of the highway network ,yet demand and congestion continue to increase .
Highway authorities accept that they do not have a mandate to provide funds for large amounts of new construction .it is clear that , for the foreseeable future ,resources will not be available to provide for unrestricted growth in private vehicular traffic .traffic engineering alone cannot provide for sufficient highway capacity even with limited amount of new construction