NYCSubwayEntrances

Description

This project processes a dataset of NYC subway entrances which has almost all entrances of subway stations in NYC. It will allow user to obtain information about selected aspects of data, such as which route is the nearest from a GPS point entered by an user, which entrance is the closest from the entered point, or which entrance is connected to an arbitral route, where two stations are connected if they have free transfer meaning station has same set of routes and the distance between them is less than 0.28km.

Command Description

list_route_stations route_identifier

Lists the station_names of all subway stations that service the given route. The route identifier is case insensitive - either upper or lower case should identify a route, e.g. "A" and "a" specify the A route.

list_all_stations

Lists the station_names of all subway stations in the entire subway system.

list_routes portal_name

Lists the routes that can be accessed at this portal. Routes should be printed in the form "route,route,..., route", where route is a route id like A, B, 7, FS. portal_name is the unique string for the portal defined in the link below.

list_station_portals station_name

Lists the names of all subway portals for the given station. The station name is case sensitive.

nearest_portal latitude longitude

Lists the portal name of the portal that is closest to the point (latitude , longitude ). The two numbers should be checked for validity - no absolute value greater than 180 degrees is allowed. In the very unlikely event that two portals are exactly the same distance from the point, either one can be listed.

nearest_routes latitude longitude

Lists the route_identifiers of all subway routes that are closest to the point (latitude , longitude ). There may be more than one because two or more routes might be at a station that is nearest to the point.

Usage

1. Download and extract or clone this repository, and cd into the directory.
2. There are two ways to build the project.
   • Using cmake:

     mkdir build && cd build

     cmake.. && make

   • Using make:

     make

3. Set PATH to bin:

        cd .. && export PATH=$PATH:$PWD/bin

4. Execute the program:
   • If the project is build by cmake:
     • To run all the commands in command-file by typing:

       runAll

     • or run a custom command defined above:

       ./bin/NYCSubwayEntrancesExe [InputFilePath] [CommandFilePath]

   • If the project is build by make:
     • To run all the commands in command-file by typing:

       make run

     • or run a custom command:

       ./bin/exe [InputFilePath] [CommandFilePath]

Please visit here for more detailed specification