這個 API 現已根據歷來平均值，傳回未來時間的預估交通時間。先前，API 只會傳回與目前時間相近的交通狀況。如要取得預測的交通時間，請指定「現在」或未來的某個時間做為出發時間，並指定行駛模式為開車。您也可以指定交通模型，例如樂觀、悲觀或最佳預測 (預設)，以影響計算行程時間時使用的假設。詳情請參閱開發人員指南。
標準方案客戶現在可以使用所有先前僅供 Google 地圖平台付費方案客戶使用的 Directions API (舊版) 功能，包括最佳路線和交通時間，以及最多 23 個路線控點 (先前限制為 8 個)。
關於這些版本資訊
本文件說明 2015 年 11 月以後的版本。方向 API (舊版) 在該日期之前就已存在，並有許多版本，但這些版本並未納入這些附註。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間：2025-05-13 (世界標準時間)。"],[[["The Directions API now provides predicted travel times with traffic for future times, considering historical data and allowing for traffic model specification."],["Standard Plan customers now have access to all Directions API features, including optimal routes, traffic-based travel times, and support for up to 23 waypoints."],["These release notes cover updates from November 2015 onward, with prior releases not included in this documentation."],["Users can subscribe to an XML feed to stay updated on new releases and changes to the Directions API."]]],["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"]]
