Physarum-Inspired Bicycle Lane Network Design in a Congested Megacity
Physarum-Inspired Bicycle Lane Network Design in a Congested Megacity
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DOI：
10.3390/app11156958
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发表时间：
2021-08-01
影响因子：
2.7
通讯作者：
Siddique, Nazmul
中科院分区：
文献类型：
--
作者：
Akhand, M. A. H.;Habib, Md Ahsan;Siddique, Nazmul
由于道路网络的复杂性和空间的限制，在现有的特大城市中，改善流动性，特别是环境友好的绿色流动性是具有挑战性的。在拥挤的特大城市支持自行车道网络（BLN）是促进绿色交通的一个有前途的选择。这项研究提出了一种新的生物启发网络设计方法，考虑了各种约束和偏好相关的大城市设计一个最佳的BLN。该方法的灵感来自于天然多头绒泡菌（Physarum polycephalum），这是一种无脑、多头的单细胞生物，能够发展出一种网状的复杂觅食行为网络来寻找食物。绒泡菌觅食行为的数学模型是适应机动的各种BLN的限制，在大城市的背景下，设计最佳的BLN。受物理启发的BLN方法应用于两个案例研究的大城市达卡设计BLN：第一个覆盖拥挤的中心城市地区，第二个覆盖更广泛的区域，包括城市的主要地点。所获得的BLN进行了评估，比较不同位置之间的可用路线与城市现有的车辆路线的距离和所需的旅行时间在不同的时间段，和BLN的路线被发现是合适的替代品，以避免拥挤的主要道路。使用BLN的预期旅行时间比其他交通工具短（例如，此外，在高峰时段，BLN的平均行驶速度几乎是公共巴士的两倍。最后，设计的BLN是有希望的环境友好和健康的移动。
Improvement of mobility, especially environment-friendly green mobility, is challenging in existing megacities due to road network complexity and space constraints. Endorsing the bicycle lane network (BLN) in congested megacities is a promising option to foster green mobility. This research presents a novel bioinspired network design method that considers various constraints and preferences related to the megacity for designing an optimal BLN. The proposed method is inspired by natural Physarum polycephalum, a brainless, multi-headed single-celled organism, which is capable of developing a reticulated network of complex foraging behaviors in pursuit of food. The mathematical model of Physarum foraging behavior is adapted to maneuver various BLN constraints in megacity contexts in designing the optimal BLN. The Physarum-inspired BLN method is applied to two case studies on the megacity Dhaka for designing BLNs: the first one covers congested central city area, and the second one covers a broader area that includes major locations of the city. The obtained BLNs were evaluated comparing their available routes between different locations with the existing vehicle routes of the city in terms of distance and required travel times in different time periods, and the BLN routes were found to be suitable alternatives for avoiding congested main roads. The expected travel time using BLNs is shorter than other transport (e.g., car and public bus); additionally, at glance, the average travel speed on BLNs is almost double that of public buses in peak hours. Finally, the designed BLNs are promising for environment-friendly and healthy mobility.