grid2demand 0.0.1.8

A tool for generating zone-to-zone travel demand based on grid cells

GRID2DEMAND: A tool for generating zone-to-zone travel demand based on grid cells

Introduction

Grid2demand is an open-source quick demand generation tool based on the trip generation and trip distribution methods of the standard 4-step travel model for teaching transportation planning and applications. By taking advantage of OSM2GMNS tool to obtain routable transportation network from OpenStreetMap, Grid2demand aims to further utilize Point of Interest (POI) data to construct trip demand matrix aligned with standard travel models.

Quick Start

Users can refer to the template code and test data set to have a quick start.

Installation

pip install grid2demand

If you meet installation issues, please refer to the user guide for solutions.

Simple Example

import grid2demand as gd
gd.ReadNetworkFiles("folder")
gd.PartitionGrid(number_of_x_blocks=None, number_of_y_blocks=None, cell_width=500, cell_height=500, latitude=30)
gd.GetPoiTripRate(trip_rate_folder="folder", trip_purpose=1)
gd.GetNodeDemand()
gd.ProduceAccessMatrix(latitude=30,accessibility_folder=None)
gd.RunGravityModel(trip_purpose=1, a=None, b=None, c=None)
gd.GenerateAgentBasedDemand()

Visualization

Open QGIS and add Delimited Text Layer of the output files.

User guide

Users can check the user guide for a detailed introduction of grid2demand.