Skip to main content

Posts

No more excuses for fatal road traffic accidents or jams.

Once it is clear that we can elimate all traffic lights and crossings, there is no more excuses for allowing fatal traffic accidents and jams. The most critical is the fatalities due to traffic accidents as a result of crossings,f even in the presense of traffic lights or roundabouts. We can elimate them by using no-crossing u-turns. The cost is so little that there will not longer be valid excuses for highway planners to allow any crossing at any junctiions, even to provide traffic lights. If there ever were fatal accidents at these crossings, the road users can sue for damages to the highway authorities. Ingorance is not a defence. I notice that, even in Sabah, there are so many junctions where crossing are allowed when we have enough space to provide merging lanes. Worse, these merging lanes were converted to crossings. There were many accidents at the crossings. A few of them are fatal and this time, the victims can sue the government for negligence in allowing crossings at j...
Post a Comment
Read more
Recent posts

Second Responses to Smarter Transport

Thank again. Your responses are more reasonable this time but I would like you to consider a few assumptions that you make. These assumptions are what make the proposals in the study not effective. Please refer to my comments alongside your statements, and my previous statements, below. Yours sincerely, Saya yang menjalankan amanah. (I, who executes the trust) Ir. Hj. Othman bin Hj. Ahmad Associate Professor Electronic (Computer) Engineering Faculty of Engineering University Malaysia Sabah Jalan UMS 88400 Kota Kinabalu Tel: 088-320000 ext 3052, 0178980858 email: othman58@ums.edu.my On Sun, Nov 24, 2019 at 11:10 PM Edward Leigh < edward@smartertransport.uk > wrote: Dear  Othman bin Ahmad, Quick thoughts in response to your reply … 1. "an intervention like this, which increases road capacity" My proposal is not about increasing capacity. It is about improving capacity of lanes that already exist. It is ...
Post a Comment
Read more

Removing Traffic Lights within City Centre of Kota Kinabalu

You can remove traffic light within the city, and do not allow right crossing. Only left crossings. No need to convert all roads into one-way streets. However, you need to create two no-crossing U-turns by converting roads around buildings at the edges of the city centre into one-way streets. These U-turns are required to do the right turns. Of course, roads not covered by the U-turns, will not be able to do right turns.
Post a Comment
Read more

Traffic lights cause jams

Traffic lights cause jams. They worsen congestion by reducing lane capacity by half. This causes more congestion instead of relieving the congestion. When no congestion, lane Capacity is full, but with more traffic, the lights reduce them to half, making the congestion worse, so causing jams. I wonder why ignored by planners. Not even in textbooks the subject of congestion. Even journals never have a consistent definition of congestion. For drivers, cars not moving is called traffic jam. Not to the civil Engineers because at Traffic lights, cars do not move also. The solution is simple. Remove all traffic lights but forbid right turns. To turn right, you must do U-turns. Not difficult in cities because there are lots of buildings. These buildings are huge roundabouts. One other solution is one-way street. It was proposed by a consultant 10 years ago. Dr. Tan. I didn't support but now I understand why.
Post a Comment
Read more

Removing Traffic Jams in Cities

 A steep underpass across road crossings which means that the speed of vehicles cannot exceed 50km/hr. Also, they are meant for cars so ceiling heights is only 2.6m, just like underground car parks. We should use underpasses for all junctions instead of traffic lights. Traffic lights cause all traffic jams. https://1drv.ms/w/s!AuDQXG4eStrWiscVgUiscA038AmWPA?e=UXYs5R
Post a Comment
Read more

Removing Traffic Jams with No-crossing U-turn

  This no-crossing U-turns can replace Traffic Lights at junctions. You need two NCUT for each junction. You replace crossings with mergings. Accidents at crossings even with traffic lights were proven to be more fatal than accidents at mergings. The full article is here:  https://1drv.ms/w/s!AuDQXG4eStrWiscTkZ9jIxFm0HULHw?e=Nc8g9A
Post a Comment
Read more

Proposal to JKR Sarawak Director

Attached are papers that describe ways of removing traffic jams economically and by using existing technology. It is based on the flow equations where it can be shown that traffic flow (vehicles per time) is not dependent on speed (Refer to Highway Traffic Manual). These papers had been submitted for academic review in journals but had been rejected because of insufficient academic content, and not because they are wrong. The papers remain copyrighted to me and should not be distributed without permission and proper acknowledgements. To remove traffic jams, it should be sufficient to slow down vehicles at junctions without stopping them. Stopping them such as at crossings and traffic lights is what causes traffic jams. We can remove crossing completely by using No Crossing U-turns, which are well known already. Instead of road crossing, we use mergings. Mergings may still cause accidents but these accidents are less fatal compared to crossings as shown by RCUT (Restricted Crossing...
Post a Comment
Read more