Frequently asked questions
About the map, the traffic jams in Amsterdam, the roadworks and the figures. Can't find your question? Ask it and the answer will appear here too.
The map
What does Amsterdamverkeer show?
Traffic in and around Amsterdam, right now. Every measured road has a colour: green flows, orange is busy, red is jammed. Next to the map (below it on a phone) you see the travel time on twelve routes many people in Amsterdam drive: how long it takes now, and how long it normally takes.
The pulsing light on the map marks the worst bottleneck at this moment. The buttons at the top left switch on roadworks, buses and car parks.
How up to date is the map?
A new measurement arrives every minute; the time of the latest one is shown at the top. The page refreshes itself. At night, when everything flows, it measures every five minutes.
What do the colours and the light mean?
Green: traffic flows. Orange: busy, at least 30% slower than normal. Red: jammed, at least 80% slower.
The pulsing light marks the worst bottleneck right now; click it and the map flies there. Under the map, “Legend” explains the other symbols: an open bridge, an accident, roadworks, a bus, a car park, and a flashing light from the emergency services (see the question “What does a flashing light on the map mean?”).
What does "normal" mean for a travel time?
The time a route takes when you can simply drive through, with no congestion. It comes from the same measurements as the current travel time. So you see at a glance what the traffic costs you: "13 min instead of 7".
A route counts as slower from 1 extra minute, and turns red from 4 extra minutes.
How does the gauge with the little car work?
The gauge at the top sums up all of Amsterdam in one reading, from green (everything flows) to red (gridlock). When the car drives at speed, it is quiet. When it stands still with its brake light on, Amsterdam is jammed.
The reading comes from two things: on how many roads traffic is busy or jammed, and how much longer the twelve routes take than normal. More about the gauge.
Can I put my own route at the top?
Yes. Click the star next to a route and it stays at the top under “Your route”, also the next time you open the map. It is remembered on your own phone or computer; no account is needed and there are no cookies.
Can I share the map or a route?
Yes. The “Share” button sends a link to the map, for example via WhatsApp. If you have chosen a route, its travel time goes along: "Zuidas → Centre: now 12 min instead of 6". Whoever clicks the link sees the situation at that moment.
What does a flashing light on the map mean?
A flashing light marks a road where traffic is slow now and the emergency services are busy: red is the fire brigade, yellow the ambulance, blue the police or another service. Click it for details and the time.
We cannot be sure this is the reason, so it says "likely the cause". Sometimes it is a coincidence, sometimes the services have already left and traffic is still getting going again. After a few hours it disappears on its own. We never show house numbers, ordinary ambulance calls or medical emergencies.
Traffic jams and roadworks in Amsterdam
Why does traffic in Amsterdam jam up so often?
Amsterdam is busy, and is being rebuilt and adjusted in the coming years: Zuidasdok on the A10 South, major maintenance on the ring road and the main routes, and from mid-2027 the IJtunnel, which will close for about a year and a half. Policy is changing too: most streets have a 30 km/h limit, parking rates are changing and there are plans for a city centre with fewer cars. What exactly that does to travel times, you can see here yourself.
Amsterdamverkeer shows what that means in practice, every minute: how long it takes right now, and how long it normally takes.
How long do the A10 South and Zuidas roadworks last?
Zuidasdok is built in phases: the A10 South is widened and partly put in a tunnel, and Zuid station is expanded. Construction of the A10 tunnel starts in 2027 and the whole project will be finished by 2037 at the latest. In 2026 there are more than ten weekends when parts of the A10 South are closed.
The figures page shows how much longer each project will take.
Where can I see roadworks?
Switch on roadworks and closures with the traffic-cone button at the top left of the map. Click a spot to see what is happening and until when. The figures page shows when each big project is done.
Times can still change; the road authority has the latest word.
When is Amsterdam busiest?
In the morning and evening rush hours. The figures page shows per day and per hour when traffic is usually jammed, and which streets were jammed the longest in the past week. In the evening the map shows what to expect in tomorrow morning's rush hour.
Should I leave now or wait a bit?
Look at the gauge and at your route. If it says "7 min, as normal", go. If your route is red, waiting a while or taking another road is often faster. In the evening the map shows the forecast for tomorrow morning's rush hour, based on the measurements of recent weeks.
Bridges, buses, parking and the weather
When do the bridges open?
The map shows which movable bridges in the city are open right now (reported, or seen in the waiting traffic), how often they already opened today and when the next opening is expected. We only show an opening from the schedule once traffic is actually waiting, so we are (almost) sure; it can therefore take a little while before an open bridge shows up here. An open bridge also appears at the top of the list of routes, with what it means for your route.
Where is there still space in the car parks?
Switch on the car parks with the blue P button at the top left of the map. Each car park shows how many spaces are free, updated every five minutes.
Are the bus, tram and metro on time?
The public transport button shows the buses, trams and metros that are fifteen minutes or more late, where they are right now. If a whole train connection is down, for example to Haarlem, you'll see that in a strip below the bar at the top: that's when many people take the car.
Why is the weather on a traffic map?
Rain and ice make the roads busier. Next to the weather you see the air quality, on a scale of 1 to 11. Point at it for the substances measured. During school holidays it is usually quieter; the forecast takes that into account.
The figures and this site
How reliable are the figures?
The measurements are refreshed every minute. Still, things can go wrong now and then: a measuring point that briefly reports nothing, or a road without a colour. Seen something that is not right? Let us know.
It remains information based on publicly available sources, not official data. See below for what that means.
Is this official information, and can I derive rights from it?
No. Everything on this site is based on publicly available sources and is processed automatically. It is therefore not official or verified data. The figures may be incomplete, delayed or incorrect, even if the source itself is right: between the source and your screen, things are measured, calculated and summarised.
We do our best to show it as well as we can, but we give no guarantee of accuracy, completeness or availability. No rights can be derived from the information on this site, and you use it at your own risk. That also goes for travel times, roadworks, bridges, buses and car parks.
Have a decision to make that really matters, for an appointment, a hospital trip or a publication? Then consult the official source or the road authority. This site is not part of any government body or road authority and does not speak on their behalf.
May I use the figures, for example for the newspaper or the city council?
Yes, please do. The figures we compile ourselves are licensed under CC BY 4.0: free to use, also by the press and researchers, provided you credit "Amsterdamverkeer.nl" as the source, preferably with a link to amsterdamverkeer.nl. For example: "Source: Amsterdamverkeer.nl". Without a credit, use is not allowed.
Please note: these are not official figures (see Is this official information?). So do not state that they come from the municipality or another government body. On the figures page you can download all measurements per quarter of an hour as a file for Excel, and make an image of the week to share.
Who is behind this site?
A private person who also gets stuck in traffic now and then. There is no company, no advertising, no cookies and no political message behind it. The site is free. Read more about Amsterdamverkeer.
Does the map work on my phone, and can I install it as an app?
Yes. On a phone the map is at the top and the route list below it; “Tap to zoom” fills the whole screen. Add the site to your home screen and it opens like an app, without an address bar.
Quick install: in Chrome or Edge there is a button below that does it for you. Don't see it? Android (Chrome): menu ⋮ → “Install app” or “Add to Home screen”. iPhone (Safari): share button → “Add to Home Screen”. Computer (Chrome or Edge): the install icon on the right of the address bar, or menu → “Cast, save and share” → “Install page as app”. A prompt like “Install this app?” comes from your own browser, not from the site, and only shows up now and then.
Another question, spotted a mistake, or missing a route? Let us know.