All arguments I was making to businesses when visiting them 25 years ago encouraging them to adopt Green Travel Plans. Things have moved on since then.
And aside from a very few cases, none of the points have any relevance to HS2. These posts would be totally off topic, but for the fact that spending the money on local transport solutions instead of high speed rail is one of the reasons why some people are opposed to HS2.
The point is that, in reality and much against what those who want more regional funding rather than HS2 may want to happen, there's a lot of travel which is fairly short distances (schools, shops, etc.), is off peak (so isn't subject to capacity constraints, so wouldn't benefit all that much from better local transport) or is long distance (so will benefit massively from HS2).
Long distance will benefit from HS2, which then reduces the "need" for people to have a car. This in turn means that for the short trips, with fewer cars per household, people are more likely to walk and cycle.
For quite a few non commuting travel trips this is off peak and so is less likely to be impacted by public transport improvements and so is unlikely to improve much of there was more spending on the existing rail network.
Unless it allows new journey opportunities such otherwise wouldn't have been possible. However with the network getting busier and busier this is unlikely to happen, with most improvements likely to be train lengthening of increased frequencies. However HS2 would allow TOC's the potential to provide new/different services and so create the potential for new journey opportunities which would be needed.
Whilst I haven't listed commuting, this is likely to change, what with more working from home, flexible working, IT, etc. (again something which those opposed to HS2 highlight as why we shouldn't be investing in rail). However such changes are likely to make rail more attractive than car travel. Why would you spend £1,500+ a year on owning and maintaing (i.e. the fixed costs of car ownership, and so any fuel is on top of this) a car when you may only use it twice a week for work and the rail fair is £12 each day (£1,250 a year). As such chances are that all those secondary journeys then are less likely to be done by car (mixture of walking, cycling and public transport).
The point is that it's entirely possible that rail travel could continue to see significant growth even at a time of a massive fall in the overall amount of travel which we all do.
Given the development of electric cars (many with decent ranges on them) I wouldn't be surprised if taxes on petrol/diesel and the VED could see some significant increases applied to them in the not too distant future. As the backlash could be fairly limited as more people like people like you and I get electric cars the more normal it is and the more people find out that they can be used fairly much like a "normal" car. However those changes could lead to fewer cars overall as well.
Car ownership amongst younger generations isn't as high as it was in the past, as they get older some will adapt to life without a car (you don't need a car to do a large supermarket shop, you don't need to own a car to get your new flat pack kitchen home, etc.) and so will be able to drive but will just hire a car/van as they need it.
For the vast majority of my life I've lived in a household with one car. It's not that hard to do. For parts of my life we could have coped without a car at all, even now with kids in tow there's little that they do which couldn't be done without owning a car (although bits of that would be more attractive if there were many fewer cars in the roads, but it could still be done).
The things which would have to change to no longer own our own car would be:
- that my other half would need to have a different job
- I might need to work slightly different hours
- visiting family wouldn't be as easy
- we'd have to either not go camping for our holiday, go glamping so that we didn't need nearly as much stuff, or hire a vehicle to do so
However the result would be that we used trains more. Which is likely to be a similar result for a lot of people.