Just back from a 10-day trip on the bike that took in France, Luxembourg, Germany and Belgium and see that this thread's still running, so I thought I'd add some more fuel to the fire based on (very) recent experience...
Started the trip home at about 9:00am yesterday, using motorways almost exclusively. In Germany, most two-lane sections of Autobahn I rode on had trucks restricted to the inside lane only - either by fixed signs (specifying either no overtaking by trucks at all, or no overtaking at specific times of the day) or by overhead gantry signs that obviously change according to conditions / time of day. Result: inside lane pretty full of trucks all travelling at approx 90kph up hill and down dale; overtaking lane populated by free-flowing cars & motorcycles travelling at speed limit +10kph on restricted sections. On derestricted sections most cars travelling at around 160kph +/- 10kph, with a few travelling
much faster, but very little variation in speed for any given vehicle due to the free-flowing nature of the traffic (and it was pretty busy on some sections).
Cross border into Holland and then Belgium. Little or no restriction on overtaking by trucks. Result: lots of elephant racing by trucks; cars & other traffic constantly braking and joining "overtaking queues" waiting to overtake; non-truck traffic "bunched" and repeatedly accelerating up to cruising speed then braking again. Much more lane changing and potential for conflict.
Cross border into France. With the exception of the section of A16 near Dunkirk, little or no restriction on overtaking by trucks except on long uphill drags. Result: where truck overtaking was restricted, similar free-flow of other traffic to Germany; where trucks have no restriction on overtaking, very similar to Belgium / France.
Sorry, but I think we could all learn a lot from the Germans on this one.
Other interesting observations on driving in Germany:
- Lots of permanent speed restrictions on Autobahns around urban areas for noise abatement reasons, and also on bridges where sidewinds can be an issue
- When these are a 130kph limit, compliance rates were high; for 120kph limits compliance was lower, but still quite high. 100kph and lower restrictions were largely ignored unless there was a speed camera (very rare)
- Long sections of roadworks, even with very narrow lanes, were generally subject to 80kph limit, had zero camera or other enforcement, but had a very high compliance rate (cf the UK's 40mph limit and SPECS / Gatso cameras in similar circumstances)
- Urban traffic seems to generally have a very high speed limit compliance rate
- In 30kph limited zones (residential areas mostly) traffic turning right from a side turning often has priority over traffic approaching the junction (just like the French Priorite a Droit rule). Because Germans are very law abiding they do not even bother to look to their left before they pull out of the side road. I'm told that these junctions have a predictably high collision rate
- Both speedcams and traffic signal cams are used in towns & villages, but seem to be limited to what look like pretty obvious trouble spots and are much rarer than in the UK
- Outside urban areas most roads are subject to a 100kph limit which is generally adhered to, but drivers quite obviously adjust their speed to the conditions, often travelling much faster if conditions permit
- In the region of most junctions the limit drops to 70kph on the approach (perhaps 150-200yds before), and immediately returns to 100kph within feet the other side. This means that the road has different limits depending upon your direction of travel, according to whether you're approaching or leaving the hazard. The 70kph limit is largely ignored, but all traffic does slow on the approach even if not to 70kph
- Relevant to motorcyclists only: filtering is not permitted