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MapMatching Rigidly Follows Traffic Laws

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#1,128 7 則留言 3 個 reaction 已指派 0 人 在 GitHub 檢視

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評估

難度
5/5
預估耗時
一週以上
新手友好度
25/100
Issue 類型
功能
描述清晰度
需要釐清
活躍度
停滯
技術堆疊
java
領域
api

研究方向

從 mapMatching API 開始,檢視相關 issue #849,然後追蹤自訂 OSRM 路線如何透過 Java SDK 傳遞。將所要求的 first responders 路線行為與目前的語音和橫幅指示流程進行比較。完成這項工作需要有一種明確定義且受支援的方式來產生這些指示,同時不拒絕違反交通法規的路線。

由索引模型根據 Issue 內容生成。

描述

The mapMatching API doesn't work with routes that disobey traffic laws. We are providing routes for first-responders (fire, law-enforment, EMS, etc.) who don't always need to obey traffic laws so this is causing issues.

Here's an example (the image on the left is the recommended route; the image on the right is what is returned from mapMatching, not allowing the illegal left turn):
Left-Turn Not Allowed

We are generating routes from our own OSRM server using custom profiles and want to use mapbox-navigation-ios for the navigation frontend. As noted in this tutorial and https://github.com/Project-OSRM/osrm-text-instructions/issues/269#issuecomment-449417857 the recommended approach is to use the mapMatching api to add voice and banner instructions to the custom generated route object (orsm-text-instructions could be used to add the simple text instructions but not the voice and banner instructions).

We don't even need the "matching" part of the mapMatching api... we already have the precise road geometry, we're not snapping fuzzy gps coordinates to a road network. We only need the voice and banner instructions but there doesn't seem to be a way to get just these without using the mapMatching API.

We could write our own package to produce the voice and text instructions based on the route object (returned from orsm) and the simple text instructions (returned from osrm-text-instructions) but it seems needless considering this is something already implemented by Mapbox but not available in any way (open source or api).

We plan to reach out directly to Mapbox support to talk about this but I wanted to post a public issue here so that other's could add to the discussion if they have similar issues or possible solutions.

related to #849

主要語言
Java
星號
438
分支
117
PR 合併指標
30 天內沒有已合併 PR

環境準備

從這裡開始

  1. 先讀完整個 Issue,再讀專案的貢獻指南。
  2. 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
  3. Fork 儲存庫,在一個分支上完成修改。
  4. 送出 Pull Request,並在描述裡引用這個 Issue 編號。

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