I would not doubt that banning inland flights could lead to a few more cars travelling longer distances - but, do you know the travel time for driving from eg. Hamburg to Munich ? or Cologne to Berlin ? It is more likely to deter people from making unnecessary journeys. The train time is also considerably less for both journeys. Another point is that long car journeys are not really the main problem. We all know that short car journeys are, proportionally, much more harmfull for the environment. It is better to drive 400km in one journey than to drive 4km 100 times, because cars emit more dangerous gasses in the first 5 minutes than at other times. Also the majority of car journeys are short ones and so the logical starting point is here. We need to reduce the need for commuting by providing firms with incentives to a) employ local labour and b) encourage workers to use public transport, as well as ensuring that all work places are reachable by public transport. We need to find ways of making out of town shopping less attractive, and also improve rural infrastructures so that the 'trip to town' is no longer necessary. I am unsure about 'banning' of things being the right way forward - if all else fails then yes, but I would rather work on making the alternatives more attractive. If people think they can have a great time exploring the English countryside, for a reasonable cost, then it may make the flight to Benidorm less attractive - I mean is it really so attractive to lie on a beach by the Mediterranean for 2 weeks - not speaking the lingo and just existing from one meal to the next - I would be bored stiff !
Good post cologne. There is a need for rural businesses to provide employment for people living in the area. As you say countries such as Germany and France are vast, and while you may work close to home in the UK, local means something different here. Local can be 30 or 40 kms, and not many are prepared to cycle that sort of distance twice a day, although one friend does. The rural companies do not tend to employ large numbers, so even if there were a bus service it wouldn't really be viable to drop people off all over the area. Cars are going to be the only method to keep these small scale companies going, so anything to reduce the pollution from them is welcome.
The amount of freight which is being moved is now (Worldwide) more per day than for the entire year of my birth - measured in Ship's tonnage. It is horrifying to think that the container ships of today travel with up to 15-20 thousand TEUs on board - the ecquivalent of 20,000 20 foot containers. All of which have to be further transported by rail or lorry from Hamburg or Rotterdam to their final destinations. Germany does make more use of its inland waterways than Britain does (possibly because they are bigger) and it is still possible to transport goods from Rotterdam as far as Switzerland but no more than about 5% of freight is transported in this way.