It's just over a year since I was appointed to the Lib Dem frontbench as Transport spokesperson.

In that time, I've learnt a huge amount about how critical it is.

From the huge success of the Elizabeth line to the still painful birth pangs of HS2.

From the central importance of both planes and motor vehicles to modern life to the pressures of moving to more sustainable forms of powering them, be it SAF (sustainable aviation fuel), hydrogen, or battery technology.

From the growing enthusiasm for active travel to the failure to properly provide the infrastructure necessary to make bikes safe for both cyclists and pedestrians.

But whilst my time as a frontbencher was often spent addressing these issues from a regional and national perspective, they invariably had a local aspect central to my role as a constituency MP.

Take the tube for example, where I continue to press TFL on the woeful state of our branch of the District Line.

Be it the repeated signal failures or the maddening unreliability of the Annunciators (now christened Dunciators in my tweets).

I have had more success with SWR who are now, at my request, encouraging their guards to walk through the trains (rather than just sit in the 5th carriage) outside of rush hour - enhancing the safety of passengers (particularly women and girls) and helping to address anti-social behaviour (and the dreadful headphone dodgers).

I have also secured SWR's agreement to turn a dead area of Wimbledon station forecourt (where the telephone box used to be) into a permanent display chronicling the station's importance in the history of rail.

My campaign in Parliament to finally get the Arterio trains out of mothballs and onto the track is finally bearing fruit.

Sadly, however, I've still not persuaded SWR to increase the frequency of trains to stations such as Malden Manor, nor get the late-night service back to its pre-Covid levels.

Notwithstanding my complaints, it was not until becoming transport spokesperson that I realised how lucky we are in London with our integrated public transport system.

But whilst we are much better served than most, that comes as little consolation when faced with decreased bus frequency on certain routes and this summer's repeated tram line closures, both of which I continue to pursue.

On electric vehicles, I am pressing the government and council on more imaginative solutions to allow those without drives (which is a huge problem in many parts of Wimbledon) to utilise cross pavement cable charging.

I also recently met with Lime to encourage them to do more to address the anti-social minority who park the electric bikes badly and ride on pavements, whilst I am also calling on the Council to prioritise better cycle infrastructure for all cyclists.

I must also mention planes, which are never far from my constituents' minds (or ears!).

Whilst I am not persuaded by those who argue airport expansion is bad for the economy, I am certain it can only be countenanced provided it is done without breaching our net zero, noise reduction, and air quality commitments.

Until that time, a third runway at Heathrow remains unacceptable.

And finally, transport is all about things moving on and last month, I switched frontbench positions to become my party's Northern Ireland shadow.

That doubtless sounds even more detached from my role as your constituency MP than transport, but in next month's column I'll try to convince you otherwise!