It doesn’t take a scientist to realise that our cities are getting more crowded.

Whether you’re waiting at a traffic light, standing on a bus or just walking around the city, you would have noticed, its getting harder to get around.

So what is the solution here? We’ve seen hordes of colourful bikes clutter up our pavements and streets, but no one seems to have come up with a permanent solution.

The emergence of ‘tiny vehicles’ has seen some people favour e-scooters, e-bikes and other low speed mobility options over car trips for short distances.

But its not all smooth sailing for these tiny vehicles, with many complaining they cause injuries, disrupt our footpaths and discriminate against the differently abled.

To find out whats really going on with these pocket rockets, Drive chatted to Hussein Dia, Chair of the department of civil engineering at Swinburne University.