afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.


Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

Psalm18:

[s]Do you have his CV with you?

I don't need to be a doctor or hold a phd in biological science to know that extreme heat is bad for the human body.
The OP merely highlighted how roundabout caused gridlock and how reducing the SIZE of median strip MAY also have the same effect.
They does seem to be merit in that idea[/s]

Originalsly:

[s]Guy... is everything about certification? Common sense over certification in this case. The town planners need to be fired... I'm very sure they are qualified for the job on paper. What does your common sense tell you about these wide medians?...do you even have an opinion?
@ topic..... with the volume of traffic....common sense should dictate make as many lanes as possible and if a median is necessary..it should never be as wide. And we still wonder why soooo many of our degrees are useless abroad[/s].

bazkid24:
I don't understand o. Those of you that also didn't understand what the Op was saying, let's gather here.

afangsoup:


Trash

afangsoup:


To conclude on some thing hastily that's scientifically proveable. Highway designs and construction is a very delicate and sensitive and highly specialized job. It takes years of education and practice to excel in it and then be called to design a city circulatory grid. The designer of that highway had paid his dues. It's not nice for a random person to come up and rubbish his work online.

ehissi:


Who dash monkey banana?

Since when did peckam and nice feature in the same sentence.........

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.


Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.


Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.


Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.


Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

OldSkoolHeadBoy:
You are absolutely wrong on this. Using the median on Mobolaji Bank Anthony Way that you have cited in your example, removing/reducing the median to create additional lanes on both sides of the road will geometrically worsen the traffic situation because more vehicles on the extra lanes created will arrive at either of the choke points at the Maryland junction or Ayinke bridge end at the same time. This scenario is similar to what happens when the traffic slows down and impatient drivers create artificial lanes on the shoulders to drive on, they end up in the front trying to force their way at the choke point and this further slows everyone down.

In fact, this brings me to point out the way we use the 3rd mainland bridge and the reason why we have traffic build up at Iyana Oworo and Adekunle ends during rush hour. The entire width of a road is not meant to be used in it's entirety just because as many vehicles can stay side by side. The 3rd mainland bridge is wrongly marked as a 4 lane highway instead of 3. Four vehicles cannot safely drive at over 80kms per hour side by side with less than one metre width of separation between them. That is the reason why traffic slows down on our highways. The higher the degree of separation, the safer and faster the drivers are inclined to go faster. During rush hour more vehicles are on the road and they are forced to drive side by side from the beginning of the bridge to the end.

Another area of concern are the descent and ascent ramps on our bridges. As anyone noticed that even when the road is absolutely free, you can hardly safely drive beyond 40kms per hour on the ramps. Anyone privileged to visit where this clover loop designs are being used in America will agree that despite the fact that the ramps can accommodate two vehicles side by side, they are clearly marked for one vehicle. The reason is that, when two vehicles drive on a ramp side by side, they will arrive at the termination point on the highway with either one of the two vehicles pushed to abruptly impede the smooth flow of the traffic on the major high way they are merging into.

Lastly, roundabouts are obsolete and being discarded in modern cities. Crossed roads too are not good either. Instead, using Lekki/Epe Expressway as an example, it is better to close all the existing junctions where the traffic lights are and introduce wide U turns at strategic junctions. If you are coming out of Lekki Phase 1, you should not be able to burst out directly to the other side of the road and make a left turn towards Epe. Instead, force all traffic a quarter of a kilometre towards the toll gate and at a convenient spot, create a U turn that will not interfere with the traffic outbound Epe. This model was poorly executed along Mobolaji Bank Anthony but it sill works and has significantly reduced the traffic at the Lagos Country club junction.

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.

Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

Psalm18:

Do you have his CV with you?

I don't need to be a doctor or hold a phd in biological science to know that extreme heat is bad for the human body.
The OP merely highlighted how roundabout caused gridlock and how reducing the SIZE of median strip MAY also have the same effect.
They does seem to be merit in that idea

afangsoup:
You're not an Urban and Regional planner, you are not a highway planner/designer/surveyor/engineer, you are not an authority in urban circulatory networks you haven't carried out proper research on what makes these roads experience delays, your write up is based on mere say and here-say which isn't objective, not factual and isn't scientifically proven, and don't bridge knowledge gap and can't proffer solutions to the challenges posed.
Consult a qualified town planner who's a highway specialist to explain better.

Cheers!

autojosh:


Not too long ago, Governor Ambode gave his approval for the removal of six very wide roundabouts situated on the Lekki-Epe expressway.

The roundabouts were situated at junctions such as Ikate, Chisco, Jakande, Igbo Efon, Chevron and Victoria Garden City (VGC).

The project was designed to ease vehicular movement along the Lekki-Ajah corridor.

Soon after their removal, the Lagos state government announced that the removal of the 6 roundabouts saved residents and motorists N240 million daily and about N87 billion annually.

According to the state government, “The Lekki-Epe road, as at the time it was reconstructed, was designed to accommodate about 30,000 vehicles per day, but the vehicular movement along the axis had since increased to over 50,000 daily, thus necessitating plans to mitigate the impact on traffic. The traffic situation in the area was further worsened by the delays occasioned by the humongous roundabouts along the corridor with an average size of about 2,800sqm which is four plots of land” he said.

Soon after the removal of the roundabouts, a survey supervised by the Lagos state government revealed that the journey time between Abraham Adesanya and Lekki Admiralty Tollgate reduced drastically from 2hours to about 36minutes.

This reduction in travel time thus saved Lekki –Ajah residents (with 60,487 average daily traffic) about N240 million daily and N87 billion yearly based on journey time and fuel savings analysis” the report said.

Now, with this experience, is it equally important that another similar factor that contributes to traffic bottlenecks on Lagos roads be visited. This factor is the presence of oversized median strips on the roads.

Going about the city, there are some economically crucial roads that features very wide median strips. Indeed, some of them add to the aesthetics of the roads.

However, and beyond aesthetics, these medians make the roads too narrow for the incredible amount of vehicular traffic on them. Thus causing severe traffic holdups.

The situation is further made worse by the fact that some of these roads have been demarcated in order to accommodate the BRT corridors.

Some popular roads with wide median strips that are notorious for traffic bottlenecks, especially during rush hours, include Ikorodu road, Mobolaji Bank Anthony road, etc.

Indeed, a reduction in the sizes of these wide medians should be one of the strategies for traffic reduction in Lagos state.

Or what do you think?









https://autojosh.com/see-how-oversized-medians-are-contributing-to-traffic-bottlenecks-on-lagos-roads-photos/

VolvoS60:





The point we must not forget is that we don't all have to be 'gurus', 'experts' and 'authorities' before we notice local problems that can and do have simple solutions.

Great point...and it goes across the board. If the surgeon says the patient has to have his neck replaced...we agree. ..after all...are we surgeons to second guess him?