講座題目：A model and method? for distance-based tolls modelling
時間：2014年11月25 日13:15-15:00
地點：交通運輸學院報告廳

主講人：Michael Florian 蒙特利爾大學計算機科學和運籌學名譽教授

Michael Florian教授是國際著名的交通系統專家，曾擔任加拿大、美國、歐洲以及部分亞洲國家的80多個交通系統規劃組織的顧問，參加了世界范圍的數十個交通咨詢項目。他在路網優化和交通規劃模型等相關領域已經發表論文150余篇，撰寫了5本專著，擔任了包括Operations Research、Transportation Science、Regional Science and Network Economics和Transportation Research在內的多個學術期刊的副主編及交通系列叢書的主編。他1990年當選為加拿大皇家院士，1998年獲得INFORMS交通科學部“R.D.終身成就獎”，2005年獲得了加拿大計算機開創者的IBM獎。他1969年取得哥倫比亞大學工程學博士學位，現為蒙特利爾大學計算機科學和運籌學名譽教授并擔任INRO Consultants（主持開發著名的EMME/2，Emme 3，Stan與Dynameq）總裁。包括中國在內的許多的大城市都在使用他的研究成果。

講座摘要：
Some feasibility studies for? current toll road? projects require the ability to model distance-based tolls, which is the way that some toll road operators establish the fees for usage in order to predict expected flow patterns and toll revenues. In practice, different variants of distance-based tolls are? experimented with, such as capped maximum toll, minimum toll and different fees per entry ramp. In static multi-class assignment problems, all these toll variants can be modelled by a? method referred to as? “ramp-to-ramp tolls”, with the condition that? there are no alternative tolled roads between an entry-exit ramp pair. Also, the ramp-to-ramp method requires the user of the software to prepare the toll value for all the possible combinations of entry/exit ramps ahead of time. In order to overcome these limitations a new algorithm for distance-based toll modelling was developed which directly uses the toll cost per link instead of the cost of entry-exit ramp pairs. Similar to the ramp-to-ramp method, the algorithm is based on the construction of temporary links, which span the toll road with the significant difference that? the original links are kept as well and are used during the equilibration process. In order to solve the static traffic assignment problem on this augmented network a parallel version of the bi-conjugate linear approximation method has been adapted for the particular toll structure considered. The new method is illustrated with an example of capped distance-based toll modelling on a real-world network, along with other results.