GPS To Help Us Around

I noticed that small vans are not being used by couriers anymore. Normally motorcycles deliver the packages I order online. Is this one of the reasons why you see motorcycles everywhere? I think it is one of the most convenient transport we have. Aside from that, it does not use much gasoline either. I wonder if they use motorcycle gps to bring them around. It's hard getting lost in the metro because you will not be able to reach your quota for the day. Everyone is not really familiar with the streets especially if you are new in this kind of job.