Is it time to start calling out bad cyclists?

Maybe, and it would have to be a bloodbath to qualify as a 'fucking disaster'.

Still, creating a two way cycle path that's only wide enough for single file use, when people on bikes all travel at different speeds is really shit.

But isn't there always a difference between design and use? From the video, the cyclist that caused the crash made a bad decision and tried to pass people too close, with a stream of traffic coming towards them.

Granted the path could be wider or the streams of traffic separated, but they just made a bad choice on how to use the lane.

Yep, but allowing a situation where one bad choice is so easily made which causes a crash involving completely innocent people is bad design. The crash is entirely predictable given the lane layout and differing speeds of commuter cyclists.

Groups of cyclists have cause to overtake other cyclists more than any other road users amongst themselves. All cars can do 30mph, so really there is little need for them to have to overtake. Cyclists speeds vary greatly, even at the "responsible" end of cycle commuting. Therefore any cycling lane along a long straight section of road should provide ample safe room for overtaking. That one doesn't.

Still, creating a two way cycle path that's only wide enough for single file use.

Indeed, also worse was some section on CS6 that suddenly gotten narrower without warning just enough for a single person each way, but most of it are comfortably wide enough to overtake as long there's no one coming in the opposite direction.

Copenhagen's own cycle track are one-way and already much wider than the London two-way one;

wide enough to overtake two cyclists riding abreast;

And then we have this shit;

its fucking piss poor design, which then combined with the users stupidity makes such accidents inevitable.

if you consider that wide mtb bars can be 750mm wide and that cyclists need to avoid pedal strike each bike will need 375mm (half a handlebar) plus say another 15cm for crank and pedal width (on the other side to avoid pedal strike), then add 50cm for each side for wobble room (and this is a fucking conservative estimate) and there is a clear argument that one cyclist needs at least 100cm of width for cyclists to pass each other, but this would be for people who don't wobble at all and have good bike handling and are comfortable having no margin for error as handlebars pass each other.

to be more realistic the recommended width for a 1 way cycle lane is 1.5m.
https://www.camcycle.org.uk/resources/cyclelanewidths/

sustrans given even more detail, see page 16 suggest 1.5m for a one way cycle lane and page 21 "Minimum 3m wide path (increase
width if heavy use expected) with 1m mown verges. Min 4m if used by groups of pedestrians or cyclists moving two abreast "
http://www.sustrans.org.uk/sites/default/files/file_content_type/sustrans_handbook_for_cycle-friendly_design_11_04_14.pdf

to be more realistic the recommended width for a 1 way cycle lane is 1.5m.

This is the main issues here.

It's purely a recommendation, meaning they don't have to aheld to this.

that wide mtb bars can be 750cm wide

this wide bar craze has got out of hand

Ahh, I was wondering why two cyclist need 500cm of room to pass each other but the 7.5 M wide bars would explain it. Someone's had their big ruler out.

And they're apparently riding bikes with pedals and cranks on the ends of the bars.

Daily Mail spotted them attaching the cranks.

It's a bit disingenuous to use the section where the track is deliberately narrowed when arguing about track widths.

@edscoble you do realise the cycle lane often goes in between pavement and bus stop in Denmark? And that sometimes it's narrow and single-file? While the infrastructure is undoubtedly better the main difference with London is you don't get cat 5 commuting in Copenhagen.
My last route to work in London went through Blackfriars bridge northbound. It would have been fine as a cycle lane if it wasn't for the army of bellends trying to overtake at all costs.

its fucking piss poor design,

Its not fucking piss poor design, stop exaggerating. It is a compromised design by both politics and that it is the first track through central london to be built and therefore oversubscribed.

This would be better then;

Or this one that's already at full capacity during rush hours.

https://youtu.be/VJ7eN8bSYSI

I'm pretty sure that's 4m wide.

Its not fucking piss poor design, stop exaggerating.

That's the thing, we would still have those tiny painted lane if no one talk about how shit they are.

We're heading in the right direction tho.

I'm pretty sure that's 4m wide.

4 metres each way?

Guidelines are for a lane to be 1.5m if it is for traffic in one direction. The lane in the video in question is two way and appears to be about 2m wide. If it is oversubscribed then it has not been designed to take the levels of traffic that are using it.

We may well have to disagree as to what constitutes piss poor design, as I'd assert that failing to accommodate the levels of use and not following guidelines is well below sub optimal design work.

oversubscribed ?
compromised design
= poor planning
yeah ?
no ?

ha ha - saw this this morning (tv) - close to spitting in da face

If it'd been aimed at me I'm sure my bidon might have accidentally found its way into his front spokes.

You're quite right, I hadn't considered that being a factor or @dancing james' points.

For argument's sake, could a speed limit ever be imposed on a cycle lane?

Only if they make speedometers mandatory.