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Road Layout/Design
Started by
440ci
, Dec 11 2003 10:40 AM, 13 replies to this topic
#1
Posted 11 December 2003 - 10:40 AM
Who comes up with some of these layouts?
Are they retarded or do they have investments in health care and crash
repair shops?
Are they retarded or do they have investments in health care and crash
repair shops?
#3
Posted 11 December 2003 - 03:05 PM
I also think that the main cause of accidents are due to the road designs
... driving in KL alone you will realise it. Many a times, I feel that the
accident victims should sue the local council ...
... driving in KL alone you will realise it. Many a times, I feel that the
accident victims should sue the local council ...
#5
Posted 13 December 2003 - 01:40 PM
One serious fault is the way they design the lanes where suddenly 2 lanes would have to
merge into 1 or 3 into 2, and a bottleneck occurs which clogs up traffic. A good example
is the stretch of the Sprint Highway in front of the muslim cemetery, going towards KL
from Damansara Jaya / Utama & Sungai Kayu Ara. And to think that the purpose of the
Sprint Highway is to better disperse traffic...
merge into 1 or 3 into 2, and a bottleneck occurs which clogs up traffic. A good example
is the stretch of the Sprint Highway in front of the muslim cemetery, going towards KL
from Damansara Jaya / Utama & Sungai Kayu Ara. And to think that the purpose of the
Sprint Highway is to better disperse traffic...
#6
Posted 13 December 2003 - 01:46 PM
Adding to the above, SPRINT stands for 'Sistem PenyuRaIaN Trafik', which means that
their highway should disperse, instead of 'bottleneck', traffic...
their highway should disperse, instead of 'bottleneck', traffic...
#7
Posted 15 December 2003 - 06:08 PM
IMHO, the Karak highway has the best road design, don't you think? The rest - hmmm..
City roadsare worse. But some taman roads are the worst.
City roadsare worse. But some taman roads are the worst.
#8
Posted 16 December 2003 - 01:21 PM
Any road which has tolls across the whole highway (ie. all traffic needs
to go through the toll, regardless of whether you're exiting at that point
or not) - defeats the purpose of having the highway.
The traffic flow capacity numbers quoted by the road planners/advocates
are flawed. E.g they say the LDP has the capacity to flow xx,xxx cars per
hour. But that's wrong. All it's doing is flowing xx,xxx cars as quickly
as possible from an extended wait at one toll plaza to another long wait
the next toll plaza. Ipoh Selatan & Jelapang tolls are also good examples.
All cars need to go through it even if you want to keep driving to JB or
to Bukit Kayu Hitam.
As for bottlenecks, I concur. We have world class 6 lane highways which
connect to 4->2->1 feeder/exit roads. Or again the LDP. 4 lane highway
with a series of chicanes at SS4 which rival the ones at Sepang.
to go through the toll, regardless of whether you're exiting at that point
or not) - defeats the purpose of having the highway.
The traffic flow capacity numbers quoted by the road planners/advocates
are flawed. E.g they say the LDP has the capacity to flow xx,xxx cars per
hour. But that's wrong. All it's doing is flowing xx,xxx cars as quickly
as possible from an extended wait at one toll plaza to another long wait
the next toll plaza. Ipoh Selatan & Jelapang tolls are also good examples.
All cars need to go through it even if you want to keep driving to JB or
to Bukit Kayu Hitam.
As for bottlenecks, I concur. We have world class 6 lane highways which
connect to 4->2->1 feeder/exit roads. Or again the LDP. 4 lane highway
with a series of chicanes at SS4 which rival the ones at Sepang.
#9
Posted 16 December 2003 - 02:53 PM
'Any road which has tolls across the whole highway (ie. all traffic needs
to go through the toll, regardless of whether you're exiting at that point
or not) - defeats the purpose of having the highway'~Seantang
Sean, I would agree with you on this statement if all tolls at highway
exits causes traffic congestions all the way back into the highway itself.
But we know that this is not the case. The purpose of a highway is to
enable travellers to reach their destinations quicker, more comfortable
and safer. Before the NKVE existed, it takes about 3-4 hours on avg from
KL to Ipoh, and an additional 3 hours to reach Penang. Now, it takes only
2 hours to reach Ipoh and 3 1/2 hours to reach Penang. Wouldn't you say
that the highway has achieved its objective, despite having toll? Let's
look at this from another angle. If the LDP/Sprint highway is toll-free do
you think that it would be congestion-free? I think not. Bottom-line : it
all boils down to design, regardless of whether there are tolls or not.
to go through the toll, regardless of whether you're exiting at that point
or not) - defeats the purpose of having the highway'~Seantang
Sean, I would agree with you on this statement if all tolls at highway
exits causes traffic congestions all the way back into the highway itself.
But we know that this is not the case. The purpose of a highway is to
enable travellers to reach their destinations quicker, more comfortable
and safer. Before the NKVE existed, it takes about 3-4 hours on avg from
KL to Ipoh, and an additional 3 hours to reach Penang. Now, it takes only
2 hours to reach Ipoh and 3 1/2 hours to reach Penang. Wouldn't you say
that the highway has achieved its objective, despite having toll? Let's
look at this from another angle. If the LDP/Sprint highway is toll-free do
you think that it would be congestion-free? I think not. Bottom-line : it
all boils down to design, regardless of whether there are tolls or not.
#10
Posted 16 December 2003 - 03:27 PM
Yup. You've got a point. Regardless of the tolls, tolled highways have
decreased travel times compared to the trunk/municipal roads they
supplanted.
I would say though, that the tolled highways would be even quicker and
less prone to congestion at chokepoints (usually toll plazas) during high
volume periods (like rush hour or balik kampung) if the toll plazas were
not placed on the main thoroughfare but rather at the exits. This can be
implemented quite easily on PLUS but would pose an impossible challenge on
the LDP. Perhaps on the LDP, Singapore's high speed electronic drive
through tolls could be the solution.
Good discussion.
decreased travel times compared to the trunk/municipal roads they
supplanted.
I would say though, that the tolled highways would be even quicker and
less prone to congestion at chokepoints (usually toll plazas) during high
volume periods (like rush hour or balik kampung) if the toll plazas were
not placed on the main thoroughfare but rather at the exits. This can be
implemented quite easily on PLUS but would pose an impossible challenge on
the LDP. Perhaps on the LDP, Singapore's high speed electronic drive
through tolls could be the solution.
Good discussion.