LastMile-TestSet

Introduction MERL Last Mile Problem Set At a Glance The size of the unzipped dataset is ~5.3MB The dataset contains the instances used in the manuscript "Seamless Multimodal Transportation Scheduling" by Raghunathan, Bergman, Hooker, Serra, and Kobori (see Citation section). Files in the unzipped folder: ./README.md express_500_10: Folder with instances. express_750_10: Folder with instances. express_1250_25: Folder with instances. express_1875_25: Folder with instances. ProblemObjectiveInformation.xlsx: Provides information on each problem instance including the optimal solution. regular_1000_10: Folder with instances. regular_1500_10: Folder with instances. regular_2000_10: Folder with instances. regular_2500_25: Folder with instances. regular_3750_25: Folder with instances. regular_5000_25: Folder with instances. regular_5000_50: Folder with instances. regular_7500_50: Folder with instances. regular_10000_50: Folder with instances. The instances of this problem set are organized in folders with names following the pattern regular_NP_ND and express_NP_ND, where NP and ND are the number of passengers and the number of destinations in the instances of the corresponding folder. Folders that begin with "regular" have uniform mass transportation service for all origins. Folders that begin with "express" have better mass transportation service for certain origins, as described below. Other Details In each folder, we have files with names following the patterns merl_lastmile_demand_NP_ND_TW_I.txt, merl_lastmile_arrivals_NP_ND.txt, and merl_lastmile_network_NP_ND.txt, where NP and ND are the number of passengers and the number of destinations as before. In addition, TW is the size of the time window (in minutes) and I is the number of the instance (from 1 to 5). Every instance corresponds to a combination of the passenger demands in each file that begins with "merl_lastmile_demand" along with the mass transportation services in the file that begin with "merl_lastmile_arrivals" and the last mile routes to each destination in the file that begins with "merl_last_mile_network". Those latter two files are unique in each folder and they can differ from the corresponding files in other folders that describe instances with the same number of destinations ND. Each file that begins with "merl_lastmile_demand" has the following structure. The first line contains the number N of mass transportation stations used as origin for the passengers. These stations are numbered fro