18 January 2020 - With the Ping if you care programme, the city of Amsterdam has collected about thirty thousand reports from cyclists: for example about long waiting times at traffic lights or about fast cycling routes. I had the opportunity to do an exploratory analysis for cyclists’ organisation Fietsersbond.

2 September 2018 - Amsterdam plans to ban scooters from most cycle tracks. Currently, cycle tracks are still used by the so-called snorfiets category which has a speed limit of 25km/h - although most ride (much) faster. The measure will make cycle tracks safer for cyclists, and it will also result in cleaner air on cycle tracks.

11 February 2018 - I just created a map showing where so-called Biro’s (small cars) are parked on the pavement and annoying people. Twitter has quite a few photos of the phenomenon. In some cases, finding their location took a bit of detective work.

26 July 2016 - Somebody at Mapbox wrote a blog post in which he makes the case that longitude should go first: almost all data formats (including Google’s KML) and all open source software (except Leaflet) use this order. Also, it’s the logical order if you include altitude (XYZ), he argues.

15 June 2015 - Cyclists’ organisation Fietsersbond has a website where you can report dangerous bollards, traffic lights that take ages to turn green, a shortage of bicycle racks, etcetera. A group of volunteers frequently check the status quo. For the good news click here: across the entire city, there are locations where the situation for cyclists appears to have improved.