Livelli di traffico, trasporto pubblico e ciclismo
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I livelli Traffico, Trasporti pubblici e Biciclette modificano il livello della mappa di base per mostrare le condizioni del traffico attuali, le reti di trasporto pubblico locali o le informazioni sui percorsi in bicicletta.
Questi livelli sono disponibili in regioni selezionate.
Livello traffico
L'API Maps JavaScript ti consente di aggiungere informazioni sul traffico in tempo reale (se supportate) alle tue mappe utilizzando l'oggetto TrafficLayer. Le informazioni sul traffico vengono aggiornate di frequente, ma non immediatamente. È improbabile che richieste rapide consecutive per la stessa area generino risultati diversi.
L'API Maps JavaScript ti consente di visualizzare la rete di trasporto pubblico di una città sulla tua mappa utilizzando l'oggetto TransitLayer. Quando il livello di trasporto pubblico è attivo e la mappa è centrata su una città che supporta le informazioni sul trasporto pubblico, le linee principali di trasporto pubblico vengono visualizzate come linee spesse e colorate. Il colore della linea viene impostato in base alle informazioni fornite dall'operatore della linea di trasporto pubblico. L'attivazione del livello Trasporto pubblico modifica lo stile della mappa di base per mettere in evidenza i percorsi del trasporto pubblico.
Se sei un'azienda pubblica che gestisce il trasporto pubblico della tua città e vuoi che i tuoi dati vengano inclusi, visita il sito del programma Partner di Google Transit per saperne di più.
L'esempio seguente mostra il livello Trasporti attivato su una mappa di Londra, nel Regno Unito:
L'API Maps JavaScript ti consente di aggiungere informazioni sulle biciclette alle tue mappe utilizzando
l'oggetto BicyclingLayer. BicyclingLayer esegue il rendering di un livello di percorsi in bicicletta, percorsi in bicicletta suggeriti e altri overlay specifici per l'utilizzo in bicicletta sulla mappa indicata. Inoltre, il livello modifica lo stile della mappa base stessa per mettere in evidenza le strade che supportano i percorsi in bicicletta e attenuare quelle inappropriate per le biciclette.
L'esempio seguente mostra il livello Bici abilitato su una mappa di Cambridge, nel Massachusetts:
I percorsi in verde scuro indicavano percorsi ciclabili dedicati. I percorsi in verde chiaro indicano le strade con "corsie ciclabili" dedicate. I percorsi tratteggiati indicano strade o percorsi consigliati per l'uso della bicicletta.
[null,null,["Ultimo aggiornamento 2025-08-31 UTC."],[[["\u003cp\u003eThe Maps JavaScript API offers Traffic, Transit, and Bicycling layers to enhance the base map with real-time information.\u003c/p\u003e\n"],["\u003cp\u003eThese layers provide data on current traffic conditions, public transit networks, and bicycle routes, respectively.\u003c/p\u003e\n"],["\u003cp\u003eThe layers are implemented using \u003ccode\u003eTrafficLayer\u003c/code\u003e, \u003ccode\u003eTransitLayer\u003c/code\u003e, and \u003ccode\u003eBicyclingLayer\u003c/code\u003e objects and are available in select regions.\u003c/p\u003e\n"],["\u003cp\u003eTransit Layer data is sourced from the Google Transit Partner Program, and public agencies can contribute their city's data.\u003c/p\u003e\n"],["\u003cp\u003eBicycling Layer visually differentiates dedicated bike routes, bike lanes, and recommended paths using varying colors and styles.\u003c/p\u003e\n"]]],["The core content describes how to use the Maps JavaScript API to overlay traffic, transit, and bicycling information on maps. The `TrafficLayer` displays real-time traffic conditions, refreshing frequently. The `TransitLayer` shows a city's public transit network, highlighting major lines. The `BicyclingLayer` adds bike paths and recommended routes. Each layer alters the base map's style. Each layer provides examples in TypeScript and JavaScript, and includes the use of `TrafficLayer`, `TransitLayer`, or `BicyclingLayer` objects with `setMap`.\n"],null,["# Traffic, Transit, and Bicycling Layers\n\nThe Traffic, Transit, and Bicycling layers modify the base map layer to display\ncurrent traffic conditions, local transit networks, or bicycling route information.\nThese layers are available in [select regions](/maps/coverage).\n\nTraffic Layer\n-------------\n\nThe Maps JavaScript API allows you to add real-time traffic\ninformation (where supported) to your maps using the `TrafficLayer`\nobject. Traffic information is refreshed frequently, but not instantly. Rapid\nconsecutive requests for the same area are unlikely to yield different\nresults. \n\n### TypeScript\n\n```typescript\nfunction initMap(): void {\n const map = new google.maps.Map(\n document.getElementById(\"map\") as HTMLElement,\n {\n zoom: 13,\n center: { lat: 34.04924594193164, lng: -118.24104309082031 },\n }\n );\n\n const trafficLayer = new google.maps.TrafficLayer();\n\n trafficLayer.setMap(map);\n}\n\ndeclare global {\n interface Window {\n initMap: () =\u003e void;\n }\n}\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/samples/layer-traffic/index.ts#L8-L27\n```\n| **Note:** Read the [guide](/maps/documentation/javascript/using-typescript) on using TypeScript and Google Maps.\n\n### JavaScript\n\n```javascript\nfunction initMap() {\n const map = new google.maps.Map(document.getElementById(\"map\"), {\n zoom: 13,\n center: { lat: 34.04924594193164, lng: -118.24104309082031 },\n });\n const trafficLayer = new google.maps.TrafficLayer();\n\n trafficLayer.setMap(map);\n}\n\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/dist/samples/layer-traffic/docs/index.js#L7-L17\n```\n| **Note:** The JavaScript is compiled from the TypeScript snippet.\n[View example](/maps/documentation/javascript/examples/layer-traffic)\n\n### Try Sample\n\n[JSFiddle.net](https://jsfiddle.net/gh/get/library/pure/googlemaps/js-samples/tree/master/dist/samples/layer-traffic/jsfiddle) [Google Cloud Shell](https://ssh.cloud.google.com/cloudshell/editor?cloudshell_git_repo=https%3A%2F%2Fgithub.com%2Fgooglemaps%2Fjs-samples&cloudshell_git_branch=sample-layer-traffic&cloudshell_tutorial=cloud_shell_instructions.md&cloudshell_workspace=.)\n\nTransit Layer\n-------------\n\nThe Maps JavaScript API allows you to display the public transit network of a city\non your map using the [`TransitLayer`](/maps/documentation/javascript/reference#TrafficLayer)\nobject. When the Transit Layer is enabled, and the map is centered on a city\nthat supports transit information, the map will display major transit lines as\nthick, colored lines. The color of the line is set based upon information from\nthe transit line operator. Enabling the Transit Layer will alter the style of\nthe base map to better emphasize transit routes.\n\nIf you're a public agency that oversees public transportation for your city and\nwould like your data to be included, please visit\nthe [Google Transit Partner\nProgram](https://maps.google.com/help/maps/mapcontent/transit/) site to learn more.\n\nThe following example shows the Transit layer enabled on a map of London, UK: \n\n### TypeScript\n\n```typescript\nfunction initMap(): void {\n const map = new google.maps.Map(\n document.getElementById(\"map\") as HTMLElement,\n {\n zoom: 13,\n center: { lat: 51.501904, lng: -0.115871 },\n }\n );\n\n const transitLayer = new google.maps.TransitLayer();\n\n transitLayer.setMap(map);\n}\n\ndeclare global {\n interface Window {\n initMap: () =\u003e void;\n }\n}\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/samples/layer-transit/index.ts#L8-L27\n```\n| **Note:** Read the [guide](/maps/documentation/javascript/using-typescript) on using TypeScript and Google Maps.\n\n### JavaScript\n\n```javascript\nfunction initMap() {\n const map = new google.maps.Map(document.getElementById(\"map\"), {\n zoom: 13,\n center: { lat: 51.501904, lng: -0.115871 },\n });\n const transitLayer = new google.maps.TransitLayer();\n\n transitLayer.setMap(map);\n}\n\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/dist/samples/layer-transit/docs/index.js#L7-L17\n```\n| **Note:** The JavaScript is compiled from the TypeScript snippet.\n[View example](/maps/documentation/javascript/examples/layer-transit)\n\n### Try Sample\n\n[JSFiddle.net](https://jsfiddle.net/gh/get/library/pure/googlemaps/js-samples/tree/master/dist/samples/layer-transit/jsfiddle) [Google Cloud Shell](https://ssh.cloud.google.com/cloudshell/editor?cloudshell_git_repo=https%3A%2F%2Fgithub.com%2Fgooglemaps%2Fjs-samples&cloudshell_git_branch=sample-layer-transit&cloudshell_tutorial=cloud_shell_instructions.md&cloudshell_workspace=.)\n\nBicycling Layer\n---------------\n\nThe Maps JavaScript API allows you to add bicycle information to your maps using\nthe `BicyclingLayer` object. The `BicyclingLayer` renders a layer of bike\npaths, suggested bike routes and other overlays specific to bicycling usage on\ntop of the given map. Additionally, the layer alters the style of the base map\nitself to emphasize streets supporting bicycle routes and de-emphasize streets\ninappropriate for bicycles.\n\nThe following example shows the Bicycle layer enabled on a map of\nCambridge, MA: \n\n### TypeScript\n\n```typescript\nfunction initMap(): void {\n const map = new google.maps.Map(\n document.getElementById(\"map\") as HTMLElement,\n {\n zoom: 14,\n center: { lat: 42.3726399, lng: -71.1096528 },\n }\n );\n\n const bikeLayer = new google.maps.BicyclingLayer();\n\n bikeLayer.setMap(map);\n}\n\ndeclare global {\n interface Window {\n initMap: () =\u003e void;\n }\n}\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/samples/layer-bicycling/index.ts#L8-L27\n```\n| **Note:** Read the [guide](/maps/documentation/javascript/using-typescript) on using TypeScript and Google Maps.\n\n### JavaScript\n\n```javascript\nfunction initMap() {\n const map = new google.maps.Map(document.getElementById(\"map\"), {\n zoom: 14,\n center: { lat: 42.3726399, lng: -71.1096528 },\n });\n const bikeLayer = new google.maps.BicyclingLayer();\n\n bikeLayer.setMap(map);\n}\n\nwindow.initMap = initMap;https://github.com/googlemaps/js-samples/blob/2683f7366fb27829401945d2a7e27d77ed2df8e5/dist/samples/layer-bicycling/docs/index.js#L7-L17\n```\n| **Note:** The JavaScript is compiled from the TypeScript snippet.\n[View example](/maps/documentation/javascript/examples/layer-bicycling)\n\n### Try Sample\n\n[JSFiddle.net](https://jsfiddle.net/gh/get/library/pure/googlemaps/js-samples/tree/master/dist/samples/layer-bicycling/jsfiddle) [Google Cloud Shell](https://ssh.cloud.google.com/cloudshell/editor?cloudshell_git_repo=https%3A%2F%2Fgithub.com%2Fgooglemaps%2Fjs-samples&cloudshell_git_branch=sample-layer-bicycling&cloudshell_tutorial=cloud_shell_instructions.md&cloudshell_workspace=.)\n\nDark green routes indicated dedicated bicycle routes. Light green routes\nindicate streets with dedicated \"bike lanes.\" Dashed routes indicate streets or\npaths otherwise recommended for bicycle usage."]]