实时 GPS 速度测试
火车速度测试在线
直接在浏览器中使用 Zpeed 进行火车速度测试。准备好后再开始追踪。
How fast is this train?
Tap Start tracking and watch the speed build as the train pulls away. No apps, no account — just a live reading from your phone's GPS.
Compare to scheduled speed.
Cross-reference the live reading with the route's published average speed to see if the service is running on time.
Record your session peak.
The trip stats panel shows your session maximum — useful on high-speed routes where you want a record of the top reading.
Spot slowdowns at stations.
Speed drops as the train brakes into a stop and climbs again on departure. The live graph shows the pattern clearly.
Reading resumes after tunnels.
GPS drops to 0 underground where satellite signals can't reach. It recovers automatically when the train exits the tunnel.
Nothing to download.
Works on any modern phone browser. Share the link with travel companions so they can check their own speed too.
浏览器 GPS 火车速度测试
Zpeed 使用设备位置来显示火车速度测试，支持 km/h、mph 或 m/s。无需安装原生应用，只有在你允许后才会开始追踪。
部分浏览器和设备对 Geolocation API 的支持有限。如果定位不准确，请在系统中开启 GPS，并允许浏览器和网页访问位置。
什么时候使用火车速度测试
火车速度测试适合旅行、通勤、快速检查，以及车载速度表不可用或不方便查看的情况。
提高 GPS 精度
使用火车速度测试时，建议在户外或靠近窗户的位置打开 Zpeed，并等待稳定的 GPS 信号。
Good to know
Things worth knowing.
01 Why does the speed show 0 in a tunnel? ⌄
GPS needs line of sight to satellites. Underground sections block the signal. The reading recovers automatically when the train exits the tunnel.
02 Does it work on any train? ⌄
Yes. Zpeed uses your phone's GPS, not the train's own systems. It works on intercity services, commuter lines, and high-speed rail as long as you have a GPS signal.
03 Does it need mobile data? ⌄
Only to load the page the first time. Once open, GPS speed calculation works with no data connection — or no SIM at all.
04 Will it drain my battery? ⌄
GPS uses more power than passive browsing. For journeys over two hours, a portable charger is handy. Adding Zpeed to your home screen as a PWA reduces browser overhead.