首先引入了公交换乘的网络数学描述，给出了公交换乘最少换乘算法。

The mathematic description of transit network is given and the least transfer algorithm is obtained.

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新算法考虑了公交换乘次数、换乘点选择以及出行总成本对求解最优路径的综合影响。

Transfer times, transfer point choice and the travel cost are taken into consideration in the new algorithm.

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通过对多种现有算法的分析，利用公交换乘矩阵性质，本文提出了一种求解公交网络最优路径的标准算法。

Secondly, based on the shortest path algorithm, a public traffic network-transit matrix and a non-transfer matrix are introduced to design the public traffic transfer algorithm.

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