授权与致谢 · Credits and licenses

路感用到的数据、图片和代码，以及它们各自的授权。The data, images and code Roadfeel uses, and their licenses.

OpenStreetMap 地图与街道数据

地图、3D 街道和考场周边场景里的道路、车道、路口、铁路和建筑轮廓等数据来自 OpenStreetMap，© OpenStreetMap 贡献者，按开放数据库许可（ODbL 1.0）提供。

应用里的 geo/*.js 场景数据文件是 OpenStreetMap 的衍生数据库。它们连同我们为场景生成、写在同一文件里的数据（路边的树和车、估算的建筑高度等），整体按 ODbL 1.0 提供。你可以在 roadfeel.app/map-data 免费下载这些文件（机器可读）和生成它们的脚本；链接打不开时，写信到 support@roadfeel.app，我们会免费发给你。你可以按 ODbL 使用、修改和分享这些数据，路感的服务条款不限制你在 ODbL 下的权利。

用这些数据画出的地图和 3D 画面是 ODbL 所说的「产出作品」。我们的 3D 模型、贴图、程序和美术不是 OpenStreetMap 数据，不按 ODbL 提供。

Roads, lanes, junctions, railways, building outlines and other map data in our maps, 3D streets and test-area scenes come from OpenStreetMap, © OpenStreetMap contributors, and are available under the Open Database License (ODbL 1.0). The app's geo/*.js scene files are a Derivative Database of OpenStreetMap. Together with the data we generate into the same files (such as roadside trees and cars, and estimated building heights), they are made available as a whole under ODbL 1.0. Download them free, in machine-readable form, with the scripts that build them, at roadfeel.app/map-data. If the link doesn't work, email support@roadfeel.app and we'll send them free of charge. You may use, change and share this data under the ODbL; Roadfeel's Terms don't limit those rights. The maps and 3D images we draw from it are Produced Works. Our 3D models, textures, code and artwork aren't OpenStreetMap data and aren't licensed under the ODbL.

州轮廓 · State outlines

考点拼图里的州形状来自美国人口普查局（U.S. Census Bureau）2023 年制图边界文件，属于公有领域，我们做了简化。State outlines: U.S. Census Bureau, 2023 cartographic boundary files (public domain), simplified.

3D 材质与贴图 · 3D textures

路面、墙面、树叶、树皮等照片材质来自 Poly Haven 和 ambientCG，均为 CC0（公有领域）。逐项清单见 assets3d/CREDITS.md。Photo textures from Poly Haven and ambientCG, all CC0. Full list in assets3d/CREDITS.md.

交通标志 · Traffic signs

应用里的交通标志都是我们按美国联邦《统一交通控制设施手册》（MUTCD，第 11 版）和加州版 MUTCD（CA MUTCD 2026）的规格自己画的，没有使用 DMV 手册里的标志图片。联邦 MUTCD 规定其中的标志设计属于公有领域；加州交通局声明 CA MUTCD 的内容「没有版权，可以自由翻印」。州际公路盾形标志（Interstate Shield）是 AASHTO 的注册商标，我们只在讲解这个标志时画出它。We draw every sign ourselves from the federal MUTCD (11th edition) and the California MUTCD 2026, not from DMV handbook images. The federal MUTCD places its sign designs in the public domain, and Caltrans says the CA MUTCD's contents "are not copyrighted and may be reprinted freely." The Interstate Shield is a registered mark of AASHTO; we show it only to teach what the sign means.

驾驶手册与官方资料 · Handbooks and official sources

《加州驾驶手册》© 加州 DMV，按 CC BY-NC 4.0 发布；纽约州《驾驶员手册》（MV-21）© 纽约州 DMV，保留所有权利。我们不转载、不翻译、不改编这两本手册的文字和插图：路感里的规则和事实都由我们用自己的话重新写，逐条链接到官方原文，并标出核实日期。DMV 官方样题和表格只给链接，不复制。法律条文属于公有领域，我们只做简短引用。

「DMV」、州名和手册名称只用来说明内容涵盖的范围。路感与任何 DMV 或其他政府机构都没有隶属关系，也未获其认可或赞助；我们不使用政府印章或 DMV 标志。

The California Driver's Handbook is © California DMV, published under CC BY-NC 4.0; New York's Driver's Manual (MV-21) is © NYS DMV, all rights reserved. We don't reproduce, translate or adapt the text or illustrations of either: Roadfeel states the underlying rules and facts in its own words, links each one to the official page and shows when we checked it. Official DMV sample tests and forms are linked, never copied. Statutes are public domain; we quote them only briefly. We use "DMV", state names and handbook titles only to say what our content covers. Roadfeel isn't affiliated with, endorsed by or sponsored by any DMV or other government agency, and we don't use government seals or DMV logos.

代码与字体 · Code and fonts

3D 渲染使用 three.js r128（MIT 许可，许可全文），随应用一起提供。字体 Public Sans、Overpass、Noto Sans SC 均为 SIL 开放字体许可（OFL 1.1），随应用一起提供；Noto Sans SC 只保留了应用用到的字。许可全文：Public Sans · Overpass · Noto Sans SC。3D rendering uses three.js r128 (MIT), bundled with the app. Fonts Public Sans, Overpass and Noto Sans SC (SIL Open Font License 1.1) are bundled too; Noto Sans SC is subset to the characters the app uses.

iPhone 应用 · iPhone app

只有 iPhone 上的路感应用带下面这些代码，网页版不带。Only the Roadfeel iPhone app includes the code below; the website doesn't.