mobility-graph 0.0.5

This package has the necessary tools to read, analyze and turn mobility data into a graph object

Mobility Graph

Mobility Graph is a Python package for the creation, manipulation, and study of the mobility systems, dynamics, and functions of complex intermodal mobility networks.

A graph tool for a better network analysis:

The objective of this package is to build a directed (or a multi directed) graph that contains all the basic tools to manipulate the graph and study changes with a focalization on mobility specific functions such as shortest path and network density and connectivity.

Graph structure:

• Nodes for stops, edges for connected stops with the respective mode.

Analysis tools:

• Reads different mobility data and builds an adaptive graph to the mode of mobility.
• Many standard graph algorithms
• Standard mobility networks analysis tools

Search Algorithm tools:

• Search algorithm to find all possible paths from origin to destination with the respective modes.

Best Path Algorithm:

• Search Algorithm to define the best possible route based on the chosen filter. (Mode, walk score, affluence)

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Documentation

If you meet the following error on a Windows machine:

A GDAL API version must be specified. Provide a path to gdal-config using a GDAL_CONFIG environment variable or use a GDAL_VERSION environment variable.

Click here for a complete walkthrough.

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##Usage This repository contains all project files.

Simple example

"""
Create a generic graph with two nodes and one edge
"""
from mobility_graph import Graph


g = Graph() # creating a graph object

g.add_node(stop_id='a', stop_name='Origin', stop_lon='1', stop_lat='3') 
g.add_node(stop_id='b', stop_name='Destination', stop_lon='5', stop_lat='2')

g.add_edge('a', 'b', 20, 'walk')

for node in g:
    for w in node.get_connections():
        vid = node.get_id()
        wid = w.get_id()
        print ('( %s , %s, %s, %s)' % (vid, wid, node.get_weight(w), node.get_mode(w)))

for node in g:
    print('g.node_dict[%s]=%s' % (node.get_id(), g.node_dict[node.get_id()]))

Installing the package

pip install mobility-graph

Installing Requirements

$ pip install -U -r requirements.txt

Roadmap

The objective of this tool is to contribute to a larger intermodal trip planning framework. For more info please check the this whitepaper

Contribution

You are welcome to create a pull request, for major changes and ideas to improve the framework feel free to open a discussion or send me an email to collaborate.

License

The MIT License (MIT)

Copyright (c) 2020 Transport for Cairo (see LICENSE.txt)