As informed this morning, Niantic has quietly stopped displays and spawns of nearby Pokemon while driving and commuting on public transport.
A thread was created in /r/TheSilphRoad with players outraging against the change. Mainly for two reasons:
Firstly, players enjoyed catching Pokemon while on the way to school or work when taking public transport or driving. Now, after the change, driving speed is that above 40 KM / H would stop Pokemon from spawning and displaying. 🙁
Secondly, it was Niantic repeatedly lack of communication that players are frustrated about the most. Even an one liner tweet in advance would have appreciated by players and also gave time for understanding and patient. But as Niantic as it has always been, they did nothing and would unlikely provide any explanation on this issue. Their previous 5 hidden update is a good example of their way of non-communication.
Right now, there are no workaround solutions for this limitation. As the change was made on the sever side and any attempt to intervene could result in a ban akin to spoof.