Its scalable application system,i have web-service you can use to track,car,bus...
the tracker should have the possibility to do http GET request
the web-service have administration session and client session
And There also is an application for clients
Arduino + GPS tracker Expert Here
I understand that you want to design Arduino + GPS tracker based project, yes I will design it for you just in 4 to 5 days complete GPS system from now. I am expert in this field and having 3 years working experience on Arduino + GPS based projects.
Come on chat for more discussions
Thanks