Pushchairs for city use

Hi there!

I am a final year Product Design student looking into designing a pram for city use for my final year project.

I would be interested to know what your experiences are with regards to taking pushchairs on public transport and navigating stairs, large crowds, shops etc. and any other problems you have!

If there are any mums living in cities willing to have a quick interview with me over Skype or email that would be fantastic! If not, any comments left on this thread would be very helpful to me!

Thank you!