A modeling framework for large-scale traffic networks

加拿大运输部在其上一份关于计划和优先事项的报告中指出，需要更好地实现多式联运一体化，并进行连贯一致的运输基础设施设计和修复，以维持加拿大对提高生产力和总体经济增长的需求。 最近为加拿大交通部进行的一项研究的结果表明，加拿大9个大都市地区每年的交通拥堵总成本在20亿至34亿美元之间（按2002年美元计算）。 准确可靠的交通建模工具的可用性影响交通管理当局在解决国家和区域道路基础设施的安全性、保障性和有效利用方面的有效性。

The Canadian Transport Ministry identified in its last Report on Plans and Priorities the need for a better inter-modal integration and consistent transportation infrastructure design and rehabilitation in order to sustain Canada's needs for productivity gains and overall economic growth. The release of a recent study performed for Transport Canada, that investigated the cost of roadway urban congestion in Canada, shows that for nine metropolitan areas of the country the total annual congestion costs ranges between 2.0 and 3.4 billion (in 2002 dollars). The availability of accurate and reliable traffic modeling tools impacts the effectiveness of traffic management authorities in addressing safety, security, and efficient utilization of national and regional roadways infrastructure.