About this map

Haarlem regularly grinds to a halt: on the Schipholweg, at the Buitenrustbrug, on the Prins Bernhardlaan. This map shows at a glance how busy it is right now, and how long the busiest routes take.

Why this site

Over the coming years Haarlem is being rebuilt on a large scale: bus lanes in Schalkwijk, a new public transport hub on the Schipholweg, bridges going in for maintenance. While that lasts, traffic jams up at many times of the day. Some projects run until 2029.

This site shows what that looks like in practice, with measurements: how long a route takes right now, and how long it normally takes.

Live: a new reading every minute

The map measures traffic across Haarlem and refreshes itself every minute. A navigation app calculates your route. This map shows how things stand across all of Haarlem, before you even get in the car.

What you see here

• A gauge showing how jammed traffic in Haarlem is right now, from green (everything flowing) to red (gridlocked).
• Travel times on twelve routes that many people in Haarlem drive: now, and normal (when traffic flows freely).
• A map with every measured road in Haarlem and the roads leading to it: Heemstede, Bloemendaal, the road to Zandvoort, Velserbroek and the Velsertunnel, Spaarndam, the A9 and the A200. Green is flowing, orange is busy, red is jammed.
• Where it is busy or jammed, in words: which street, from which junction to which.
• Roadworks and road closures, behind the button at the top left of the map.
• Which bridge over the Spaarne is open right now, how often it has opened today and when it opens next.
• Accidents and stopped cars in and around Haarlem, as soon as they are reported.
• Buses that are late, free spaces in the car parks, the weather and the air quality. If a whole train connection is out, you'll see that too.
• The forecast: how busy it usually is, school holidays included.
• The figures: where and when traffic is jammed most often, tracked day after day.

How does the gauge work?

The gauge at the top of the map shows at a glance how jammed traffic in Haarlem is right now. If the little car is on the left, in the green, everything is flowing. The further to the right, the redder and the more jammed it is. If it is driving at speed, it is quiet; if it stands still with its brake light on, Haarlem is jammed.

The reading comes from two things: on how many of the measured roads it is busy or jammed right now, and how much longer you take on the twelve routes than normal. So that the little car doesn't jump about, the reading is the average of the last five minutes. At night it sits all the way to the left, during the day mostly in the green or yellow, and at rush hour in the orange or red.

• Everything is flowing and fairly quiet: green
• Busy in places: yellow
• Busy: orange
• Jammed in many places and gridlocked: red

The small gauge next to the weather shows air quality, on a scale from 1 (clean) to 11 (very bad). Point at the gauge for the substances measured.

No politics

This is not a campaign site and there is no political message behind it. The figures are there for everyone: for anyone who wants to know whether it's worth setting off now, and for anyone who wants to show how often traffic in Haarlem really grinds to a halt.

Independent and free

No company, organisation or political party is behind the map. There are no ads and no cookies are used. Now and then a reading may be missing, or a road may have no colour for a while.

We do our best to show everything correctly, but we can't guarantee that the figures are complete or accurate, and no rights can be derived from them.

An idea, a mistake you spotted or a route you're missing? Let us know.