In order to optimize the problem of carbon emissions in transportation networks, the environmental shortest path problem is addressed in a traffic network based on carbon emissions. Firstly, the suitable calculation model for carbon emissions is suitably selected. Secondly, a nonlinear constraints optimization mathematical model is established to the environmental shortest path problem through defining carbon emission as the objective function. Thirdly, a label algorithm is constructed to solve the environmental shortest path problem. Finally, numerical results in transportation network show the validity and feasibility of the proposed label algorithm. The results suggest that the environmental shortest path based on carbon emissions is significantly more difficult to solve to optimality than the shortest distance path and least travel time path problem, but offers insight on navigation of "environmental-friendly" vehicle routing.
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机译：为了优化运输网络中的碳排放问题，基于碳排放的交通网络在交通网络中解决了环境最短路径问题。 Firstly, the suitable calculation model for carbon emissions is suitably selected.其次，通过将碳发射定义为目标函数，建立到环境最短路径问题的非线性约束优化数学模型。第三，构造了标签算法以解决环境最短路径问题。最后，运输网络中的数值结果显示了所提出的标签算法的有效性和可行性。结果表明，基于碳排放的环境最短路径明显难以解决比最短距离路径和最小行程时间路径问题更难以解决，但为“环保”车辆路线的导航提供洞察。
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