"John Hearns" <[email hidden]> wrote in message
news:[email hidden]...
Quoted message said:Talking about pinch points where cyclists become invisible.
There is a consultation in my local area for new traffic measures,
aimed at reducing speeds.
I went alon on Saturday to the public consultation, where two engineers
from Mott MacDonald were showing plans on a board.
The main comment I made was that a chicane they planned was dangerous
to cyclists - and pinch point tempts motorists to squeeze past you.
The critical thing with pinch points is that they should either be:
a) Wide enough to allow safe overtaking (4.5m at an absolute minimum)
- in which case there will be no traffic calming effect at all. OR
b) Narrow enough that not even the dimmest of drivers would contemplate
attempting to overtake (less than 3.0m).
Anything in between is bad news for cyclists. Unfortunately engineers like
to compromise so you tend to end up with 3.5m gaps (ie not wide enough
to overtake but not narrow enough to make this obvious to drivers).
Quoted message said:I talked with one of the engineers, and he was surprised that I was
against any on-road cycle lanes. They had an 'advisory' lane on the plan,
which in my opinion does no good.
He mentioned mandatory lanes - but what difference does a solid line
make to a ten-tonne truck running you over...
The key thing with a cycle lane is the width.
Anything less than 2m and you are better off without it.
Advisory lanes are better - because motor vehicles are allowed to encroach
the cycle lane then the engineer is permitted to make the general traffic
lane
narrower than the vehicles using it and maintain a full width cycle lane.
(ie a 2m cycle lane next to a 2.5m traffic lane). If vehicles need to
encroach the
cycle lane then that is no problem - so long as there is no cyclist using it
at the time.
If there is a cycle lane then it indicates the amount of space the cyclist
needs.
Unfortunately most engineers are idiots - at least when it comes to
designing
for cyclists - so they get everything the wrong way round. They insist on
maintaining
a full width traffic lane (which they would have to do with a mandatory
lane)
So you end up with a half width cycle lane next to a 3.5m traffic lane. This
positively
encourages dangerous overtaking and take space away from cyclists.
Quoted message said:Also I'd like to hear what people on this list think of anit-skid
coatings.
Quoted message said:Good or bad? Is it bad to have something which helps speeding drivers
slow down?
Yes. As with most safety features they treat it as a performance enhancement
and thus approach junctions faster, knowing that they can brake harder.
The dressing is also awfull to ride on and tends to be lumpy.
Quoted message said:Another aspect of the plans was a red coloured central strip on the road.
At the moment it has white and maybe hatched white lines.
Red tarmac and chippings any good?
These are good, as drivers can use this to overtake cyclists with greater
clearance - so long as they don't put islands in the hatched bit.
If the traffic is clogged these enable cyclists to overtake queues more
easily.
Quoted message said:Two things I did welcome:
a) electronic signs which flash up when a driver is speeding
b) raised tables at the entrace to side streets
They need to be carefull to set the tables back so that you don't ride
up the ramp at a tangent if you are turning into the side street.