README.md

metadata

license: mit

Bixi's OpenData Modelisation

Here is a huggingface dataset refined with AntoineGiraud/dbt_bixi_opendata dbt-core project
that loads & transform bixi OpenData thanks to DuckDB 🦆🚀

Viz' exploration ideas

I used Power BI to explore the transformed data offloaded to .parquet (~ 4.7 times lighter than .csv)

After the pandemic, Montrealers realy went back to bixi 🥳

Data sources

Bixi Rentals OpenData (link)

• 🚲 Rentals V1 : from 2014 to 2021

  for station info, join to station yearly file with station_code

• ⛽ Stations V1 : from 2014 to 2021

  1 station code per year

• 🚲 Rentals V2 : from 2022 to 2024+

  start/end station info on each rentals
  -> 2.7 times heavier .csv 1.4Gb -> 0.5Gb
  -> 2.3 times heavier .parquet 250Mb -> 106Mb

GIS referential

• 🧭 Municipal sectors : from the OD 2013 survey (cf. donnees quebec)

Schema/DB steps :

• raw : raw tables loaded as is from .csv
• stg : intermediate tables
• dtm : tables ready for analytics & reporting use

Loading

DuckDB realy shines by it's speed & local OLAP capabilities 😎

Here is 🚲 v1 rentals (2014 - 2021) load & offload to .parquet

• .csv is 4.5 times heavier than .parquet
• .json is 2.7 times heavier than .csv