This example creates a map that uses a traffic layer to show real-time traffic information.
Read the documentation.
TypeScript
function initMap(): void { const map = new google.maps.Map( document.getElementById("map") as HTMLElement, { zoom: 13, center: { lat: 34.04924594193164, lng: -118.24104309082031 }, } ); const trafficLayer = new google.maps.TrafficLayer(); trafficLayer.setMap(map); }
JavaScript
function initMap() { const map = new google.maps.Map(document.getElementById("map"), { zoom: 13, center: { lat: 34.04924594193164, lng: -118.24104309082031 }, }); const trafficLayer = new google.maps.TrafficLayer(); trafficLayer.setMap(map); }
CSS
/* Always set the map height explicitly to define the size of the div * element that contains the map. */ #map { height: 100%; } /* Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; }
HTML
<!DOCTYPE html> <html> <head> <title>Traffic Layer</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <link rel="stylesheet" type="text/css" href="./style.css" /> <script src="./index.js"></script> </head> <body> <div id="map"></div> <!-- Async script executes immediately and must be after any DOM elements used in callback. --> <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly" async ></script> </body> </html>
All
<!DOCTYPE html> <html> <head> <title>Traffic Layer</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <style type="text/css"> /* Always set the map height explicitly to define the size of the div * element that contains the map. */ #map { height: 100%; } /* Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; } </style> <script> function initMap() { const map = new google.maps.Map(document.getElementById("map"), { zoom: 13, center: { lat: 34.04924594193164, lng: -118.24104309082031 }, }); const trafficLayer = new google.maps.TrafficLayer(); trafficLayer.setMap(map); } </script> </head> <body> <div id="map"></div> <!-- Async script executes immediately and must be after any DOM elements used in callback. --> <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly" async ></script> </body> </html>
Create a starter application from sample
A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.
Run Locally
Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM.
npx @googlemaps/js-samples init layer-traffic DESTINATION_FOLDER
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