|
|
|
|
|
|
|
|
MARCH 2020
Honestly. Are
the blokes who set up our traffic lights
trying to save lives or just increase
revenue?
Very
occasionally they do the right thing.
Like the pedestrian intersection at the
"T" intersection of Oxford St, Bronte Rd
& Grosvenor St in Bondi
Junction. What happens is all the
traffic lights are red and all the
pedestrian crossings are green. And when
the pedestrians get an "amber" light, it
is a countdown to zero of when the road
traffic gets a green light. That
countdown is a brilliant idea, and they
ought to patent it and put it
everywhere. In addition, I would
suggest that they should apply the same
technology to warn cars when the lights
turn from green to amber to red.
(They can patent that idea on my chit).
Put the amber on countdown, so (if for
instance a bus or truck had blocked our
vision) we would know instantly how much
time we had to stop, or whether to
continue because the sudden braking
required might get us a rear ender.
But mostly they
get it wrong. A prime example is the T
intersection of Darlinghurst Rd and
Bayswater Rd in Kings Cross. When
they stop all road traffic, do they open
all pedestrian crossings? No. The
Darlinghurst Rd crossings say "Walk" but
the Bayeswater Rd crossing is "Don't
Walk". From there it gets
worse. Before the Darlinghurst Rd
pedestrians can get more than halfway
across, the Bayswater lights allow cars
to go forward. Which they do,
tooting the pedestrians who were unable
to cross and now have a flashing "Don't
Walk". The idea was probably to
allow road traffic to get through
rapidly. But that is a busy
pedestrian intersection, and not the
place to save driver's time if they have
to give way to pedestrians.
Other issues are
"Don't Walk" signs switched on at times
when traffic has a red light. (East side
crossing at Devonshire/Bourke streets
intersection, North side crossing on
Bourke/Cleveland.)
And still other
issues are the approximately three
second pause between closure of a green
light that allows left turn and through
traffic and opening of a green left
arrow. That happens at the South
Dowling/Oxford St intersection and at
the New South Head/New Maclean Streets
intersection. Cars must brake to a
stop, only to then have to accelerate
left.
Why does this
endanger lives? I note that
Pedestrians show contempt for the
designers and the time that is
consequently wasted. So they just break
the law and cross at the "Don't Walk"
signs. And because the timing of
amber lights varies, drivers are
encouraged to "run" amber lights which
makes accident's more likely.
Diamond
Princess, a cruise ship with COVID-19
was moored for 14 days in Japan.
Doctors were testing the passengers on
board and produced the following
data. The data below was sourced
from this
paper.
AgeRange | No. of passengers | Symptomatic cases | Asymptomic cases (%) |
Total cases (as % of passengers) |
Observed deaths on cruise ship |
0 - 9 | 16 | 0 | 1 |
1 (6%) | 0 |
10 - 19 | 23 | 2 | 3 |
5 (21%) |
0 |
20 - 29 | 347 | 25 | 3 | 28 (8%) |
0 |
30 - 39 | 428 | 27 | 7 | 34
(8%) |
0 |
40 - 49 | 334 | 19 | 8 | 27
(8%) |
0 |
50 - 59 | 398 | 28 | 31 | 59 (15%) |
0 |
60 - 69 | 923 | 76 | 101 | 177
(19%) |
0 |
70 - 79 | 1015 | 95 | 139 | 244
(24%) |
6 |
80 - 89 | 216 | 29 | 25 | 54 (25%) |
1 |
Totals | 3711 | 301 | 318 | 619 (17%) |
7 |
I
hypothesize the following: