README.md

BASt - Traffic Count ETL Process

This script will download, parse and import data from bast.de to a mongodb instance.

Prerequisites:

• MongoDB >= 3.7
• Node.js >= 9

Installation

npm install

Config

You can configure the importer in the config.js file:

• db:
  • host: the hostname where your MongoDB instance is running
  • port: the port to communicate with your MongoDB instance
  • name: the name of the database
• categories: an array containing 'A' for Autobahn and 'B' for Bundesstraße
• fromYear: starting year for importing data (min. 2003)
• toYear: end year of the imported data (max. 2016)
• networkList: a sorted list of measurement stations
• format:
  • year: a function called for each file containing measurement stations
  • hour: a function called for each file hourly collected data
• exceptions: an array of objects containing exceptions used to correct problems in the data. Each object contains a wrong function to identify the file containing the error and a correct function to correct the problems
• highwayExceptions: an array of objects containing the name of an Autobahn and its ID in OpenStreetMap. This is needed since some entries can't be found by name
• highwayOut: the folder where you want to save the GeoJSON files extracted from OpenStreetMap

Run:

• download will download the data

npm run download

• import will import the hourly measurements to the database

npm run import

• stations will import the data about the measurement stations

npm run stations

• wikidata will query the SPARQL endpoint of wikidata in order to obtain additional information about each Autobahn and Bundesstraße. This script will also try to find the OpenStreetMap ID of each entry in order to download a GeoJSON file of the Autobahn/Bundesstraße

npm run wikidata

The script scripts/aggregate.js is a stub used to aggregate and reshape the imported data using the MongoDB query language.