Which is safer?

[SB1500]

Buses are generally protected by being Slow...and very heavy, there's very little out there that can stop a bus suddenly so the force is shed more gently than a car accident.

I find it bizarre that lorries are limited to 56mph (good!) but busses / coaches can fly merrily as fast as they want. Both equally dangerous when out of control to everything around them except tens of people onboard the one that can speed. How have the EU of all people not stamped down on that one decades ago?!

Camera wise I like the combination as parking sensors tend to go off a lot for no good reason. Usually as most systems pick up 2-3 feet either side so there's pretty much no way of reversing into a bay without them crying wolf at least once.

And sensors miss bollards often too… camera I’ve found to be more useful. Of course more is better I suppose.

 

[SB1500]

l don't particularly think accidentally including some crossovers for example would invalidate the Study. Given it was mainly on the impact of vehicle height and shape on pedestrian survival in this case if it walks like a duck and Quacks like duck...it can be considered a duck.

I’ve concluded there aren’t any real SUVs anymore. A week with the Grandland convinced me all modern crossovers and thing marketed as SUVs in the last decade are what we called ‘people carriers’ the decade before. They can dress it up however they want. It’s working to sell them!

Last point valid but these are the sort of studies that tend to lead to things like changes in type approval rules. It might be you end up with maximum bonnet height rules or to get Ncap stars your front grille now needs to be a whoopi cushion..

we’ll end up with ugly ducklings like the 2-Series and B-Class, please god no…

 

[StevenRB45]

The irony is that NCAP test for pedestrian impacts and so any data needed for their study could have just been a literature review of NCAP results

Not really given Ncap fire a fake head at the bonnet and measure the results and also a fake leg at the front bumper.

They do some geometry based assessment as well if memory serves but it's not the same as real world data.

I find it bizarre that lorries are limited to 56mph (good!) but busses / coaches can fly merrily as fast as they want. Both equally dangerous when out of control to everything around them except tens of people onboard the one that can speed. How have the EU of all people not stamped down on that one decades ago?!


And sensors miss bollards often too… camera I’ve found to be more useful. Of course more is better I suppose.

It's illegal to build a bus that can do more than 56mph if memory serves, and also although the highway code states coaches can do 70mph and use lane 3 of the motorway again if memory serves they are limited to 62 now so only very old coaches can achieve 70mph.

That and even older buses physics was an effective speed limiter, they are not powerful or torquey as a Truck, weigh more unladen and have terrible aero.

The buses we had in 80s and 90s were a Leyland Olympian like everywhere. But due to local conditions rather than having a gutless Gardner or Leyland diesel, a power sapping hydracyclic gearbox and town gear ratios they were somewhat spicier. So we got a Cummins diesel with about 40% more power, a full auto gearbox and also the longer coach axle ratios.

They are quietly legendary among people who know about these things and over-represented in preservation because they are held to be one of the fastest double deckers ever built.

They top out at just over 60.

As for Cameras and Bollards...the rear of my Toyota bears what looks like a repaired bollard scar. Until I owned it and had sensors fitted it was camera only so I assume given cameras or sensors neither is perfect if the driver isn't doing their job. Both makes it less likely one or other systems limits cause you a problem.