Census 2021 origin-destination data processing scripts

A set of scripts for processing Census 2021 origin-destination data into files suitable for the origin-destination data explorer.

You need to install Git and NodeJS on your machine in order to run these scripts. The scripts should run fine on Windows, MacOS or Linux.

Clone the repo and install dependencies

Run these commands to clone this repo and install NodeJS dependencies from NPM.

• git clone https://github.com/ONSvisual/census-od-data.git
• cd census-od-data
• npm install

Run the scripts

Clean the data

You need to run this step before any of the below steps.

• npm run clean-data

Generating dots

• npm run make-journeys
• npm run make-points
• npm run compress-points

Generating "chunks" of data

• npm run make-chunks

Generating metadata

• npm run make-metadata

Generating summary counts for all areas

• npm run make-counts