带有航点的当前交通中的Google Maps Directions [英] Google Maps Directions in current traffic with waypoints

问题描述

我正在使用google maps api来获取带有durationInTraffic选项的路线.

I am using the google maps api to get directions with the durationInTraffic option.

var request = {
    origin: start_address,
    destination: end_address,
    waypoints: waypts,
    durationInTraffic: true,
    optimizeWaypoints: true,
    travelMode: tmode
};

directionsService.route(request, function(response, status) { ....

这在没有起点的开始和结束地址的情况下都可以正常工作，如下所示:

This is working fine with a start and end address with no waypoints, as seen below:

我的问题是，当我添加航路点以进行路由时，当前交通时间"估算值将不再显示.

My problem is that when i add a waypoint to to route then the "time in current traffic" estimate is no longer shown.

这是否是API的限制(我没有找到支持该文档的文档)?或者可能的解决方法/变通方法，因为路况信息对我的应用非常重要.

Is this a limitation of the API (I have found no documentation supporting that)? Or a possible fix / workaround as the traffic information is very important to my app.

推荐答案

我向Google员工问了类似的问题，这是否是因为我在航路点上使用了stopover = true选项，确实如此.如果将其stopoverover设置为false，则应返回流量的持续时间.

I asked a similar question to the folks at Google about whether this was because I was using the stopover = true option in the waypoints and indeed it was. If you set it stopover to false, the duration in traffic should be returned.

在当前文档中此处

来自Google:

...我们无法预测您将停留多长时间中途停留，因此很难对duration_in_traffic.通过使用非中途停留点，您可以声明您将不会在这些路口停留，从而使我们的服务能够估计每条腿的duration_in_traffic.

... we can't predict how long you will stop at stopovers, making it difficult to give a proper estimation for the duration_in_traffic. By using non stopover waypoints you state that you wont stop at those waypoints, thus allowing our service to estimate the duration_in_traffic of every legs.

他们还提到，如果您使用Directions Matrix API，则只有起点/终点对才计入您的配额，因此您可以发送多个请求而不会受到额外的惩罚.

Also, they mentioned that if your using the Directions Matrix API, only origin/destination pairs count against your quota, so you can send multiple request without additional penalty.

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