Compute Routes can return information about the following route features, when known:
- Flyovers: Information about elevated road segments, such as overpasses and bridges.
- Narrow roads: Information about roads that are deemed to be more narrow than normal.
No visual indicatorsare provided on the map.
Supported countries:India only
Why use it
Use the flyover and narrow route options to notify your users of these features. For example, provide alerts or visual indicators on the maps so that drivers using your app can readily anticipate these routes and adjust their driving accordingly.
For instructions, see the following sections:
Request flyover information
Your request must meet the following criteria:
- Request a route in India.
- Set
travelModetoDRIVEorTWO-WHEELER. - Include
"extraComputations": ["FLYOVER_INFO_ON_POLYLINE"]. - Include a field mask for these fields:
-
routes.polyline_details.flyover_info -
routes.polyline
-
- Don't includethe
optimizeWaypointOrderparameter.
For details, see PolylineDetails.FlyoverInfo
.
Example request: Flyover information
curl - X POST - d ' { "origin" : { "location" : { "latLng" : { "latitude" : 28.57580734159006 , "longitude" : 77.02719067373043 } } }, "destination" : { "location" : { "latLng" : { "latitude" : 28.595737365438477 , "longitude" : 77.16870453065245 } } }, "travelMode" : "DRIVE" , "extraComputations" : [ "FLYOVER_INFO_ON_POLYLINE" ] } \ - H 'Co ntent - Type : applica t io n /jso n ' - H 'X - Goog - Api - Key : YOUR_API_KEY ' \ - H 'X - Goog - FieldMask : rou tes .polyli ne _de ta ils. fl yover , rou tes .polyli ne ' \ 'h tt ps : //routes.googleapis.com/directions/v2:computeRoutes'
Example response: Flyover information
{
"routes"
:
[{
"polyline"
:
{
"encodedPolyline"
:
"selmD}jcuM?oBcDAqEF}DCOOZuCfAwJFMJM\\_Cd@mEv@gFHQF_C?eIGe@_@{@g@u@MY@Wz@cCp@}AF_@MeC?kLFy@xZpBxRlAdJj@zCPlBRxPfApP|@`@MVUHQv@iF~@aFfAeEnA_EpAgD`@kAjCeF~FiKPa@NOx@iApAyCtA{C`@wAEg@Ba@Xq@TU`@MZCLY^QPQx@kAn@cAh@s@^YZ]fA{@lAs@bBy@`DiAtDwAdB_ARCP@z@m@dAeAbA_BpAcCd@oAr@eBRe@nEsIjAiBdAuBZw@n@{BTsANi@p@wAJ]h@wCr@oEr@yEvAwI`AuGt@gG`@oEt@wFr@}FpB_N`CiQ`AqGVoAbEcP^_Br@uDr@yEPqA^cEj@iERyCReEf@}GvBkQXwATgC@_@AYK]u@wAGa@IoHFaEFoAXuDVqBdBsLb@qDRuCRaELu@Rs@d@u@lBaC\\o@Tm@VwANcAHmADuCCsAKo@YkAU}@AQ@WHa@iJyTs@uAe@q@c@i@oA_AuAw@kBu@iEwAuDoA_JeDiB}@qAaA]a@u@gAeAoB_CoG}@eCgAoCw@wAsByCe@i@iCmDmAmB}BeDu@aAaHyJ_BwBCEyBaD}AkBu@u@uAy@gBw@yAc@gFoAiKmC}E{@eCk@sF}@YCwDIqDG{Tq@mB@_Ne@k@AoBGkAKaB]{Am@gBkAcAgAcBeCmAwBwAwCmDeGq@yAcAwCmCgJQu@i@gAw@mAaAkA{@u@oAu@eAe@kAa@}GcBEAkDq@aAWkKaBqDq@oMuBuBc@e@Ok@Wm@e@_AaAm@aA[}@a@uAy@aDmCmJSi@cAmDsEyNgAaDcDeKEo@gAkDkD{I_AyCg@qBeAqEU_AgA_D[{@gBoGaDaIqDaIYs@"
},
"polylineDetails"
:
{
"flyoverInfo"
:
[{
"flyoverPresence"
:
"EXISTS"
,
"polylinePointIndex"
:
{
"startIndex"
:
153
,
"endIndex"
:
173
}
},
{
"flyoverPresence"
:
"EXISTS"
,
"polylinePointIndex"
:
{
"startIndex"
:
190
,
"endIndex"
:
213
}
}]
}
}]
}
Request narrow road information
Your request must meet the following criteria:
- Request a route in India
- Set
travelModetoDRIVE. - Include
"extraComputations": ["NARROW_ROAD_INFO_ON_POLYLINE"] -
Include a field mask for these fields:
-
routes.polyline_details.narrow_road_info -
routes.polyline.
-
-
Don't includethe
optimizeWaypointOrderparameter.
For details, see PolylineDetails.NarrowRoadInfo
.
Example request: Narrow road information
curl - X POST - d ' { "origin" : { "location" : { "latLng" : { "latitude" : 12.9598336 , "longitude" : 80.1659834 } } }, "destination" : { "location" : { "latLng" : { "latitude" : 12.9593739 , "longitude" : 80.1723585 } } }, "travelMode" : "DRIVE" , "extraComputations" : [ "NARROW_ROAD_INFO_ON_POLYLINE" ] } \ - H 'Co ntent - Type : applica t io n /jso n ' - H 'X - Goog - Api - Key : YOUR_API_KEY ' \ - H 'X - Goog - FieldMask : `rou tes .polyli ne _de ta ils. narr ow_road_i nf o` , rou tes .polyli ne ' \ ' [ h tt ps : //routes.googleapis.com/directions/v2:computeRoutes](https://routes.googleapis.com/directions/v2:computeRoutes)'
Example response: Narrow roads
{
"routes"
:
[{
"polyline"
:
{
"encodedPolyline"
:
"{ebnA_mhhNqAGGeD?aAFq@Xy@Re@Jm@FmABOHOTQBYWgIBiHBo@j@@d@@"
},
"polylineDetails"
:
{
"narrowRoadInfo"
:
[{
"narrowRoadPresence"
:
"EXISTS"
,
"polylinePointIndex"
:
{
"startIndex"
:
15
,
"endIndex"
:
16
}
}]
}
}]
}
Supported regions
Flyovers and narrow roads are supported in India only.
Billing
Google Maps Platform doesn't charge extra for the use of an experimental feature. You are charged based on your usage of the API for other parameters you set.
Learn more about billing for Routes API Compute Routes.
