现在，该 API 会根据历史平均数据返回未来时间的预计交通时间。之前，该 API 仅返回非常接近当前时间的交通状况下的出行时间。如需接收包含路况信息的预测行程时间，请指定“现在”或未来的某个时间作为出发时间，并将出行方式指定为驾车。您还可以指定乐观、悲观或最佳猜测（默认）的流量模型，以影响计算出行时间时使用的假设。如需了解详情，请参阅开发者指南。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-09-26。"],[],["The Directions API release notes, updated with each new release, detail features, bug fixes, and performance improvements. A key update from November 10, 2015, includes predicted travel times with traffic for future departure times using historical averages and a choice of traffic models. Standard Plan customers gained access to optimal routes, travel times with traffic, and increased waypoints (up to 23) that were previously limited to Premium Plan users. These notes start from November 2015.\n"]]
