Why the Traffic Jam in Dar are here to Stay

Why the Traffic Jam in Dar are here to Stay

n00b

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Every month, Tanzanians buy an average of 4,500 light vehicles-those with capacity below 12 passengers. The majority are used in Dar es Salaam, according to the latest statistics from the Tanzania Automobile Association (TMA).

On the list are tricycles, famously known as Bajaj, and motorbikes-both used to ferry passengers in Dar es Salaam and other parts the country.

With Dar's economy valued at Sh7.5 trillion ($4.6billion) a year, fresh data on the importation and registration of motor vehicles, tricycles and motorbikes sheds light on why the traffic jam is here to stay.

Some analysts, including our top leaders, have linked the lengthening of the traffic jam with development. The more money there is in people's pockets, the worse the traffic jam for the simple reason that the middle-class soon gets the appetite to own their vehicles.

This theory holds beyond our borders. At the heart of Johannesburg, South Africa's wealthiest city, stands a big billboard that reads: Traffic jam or metropolitan outburst? The advert placed by The New Age -a newspaper associated with the ruling elite-portrays a different view on the traffic jam.

No wonder President Kikwete once commented that the worsening traffic jam in Dar es Salaam was simply a demonstration of economic development.

But whether measured by the total number of vehicles or the rapidly growing population, six years of data on the importation and registration of vehicles, tricycles and motorbikes paints a gloomy picture for the future of traffic flow in Dar es Salaam.

Between 2008 and 2013, there were a total of 226,806 light vehicles imported and registered in Tanzania-a yearly average of 37,801 vehicles bought by Tanzanians during that period. About 70 per cent of these cruise the streets of Dar es Salaam city. And this number does not include vehicles assigned to government officials, the police, the army and donor-funded projects.

Last year alone, the number of light vehicles imported and registered surged by 23.5 percent, reaching 54,452 units -a monthly average of 4,537 cars.

In 2012, the total number of light vehicles imported and registered in the country was 47,360 units, according to latest data released by Automobile Association of Tanzania (AAT).

Between 2008 and 2013, Tanzanians purchased a total of 39,078 heavy load trucks-with the majority operating between Dar es Salaam and upcountry routes. During that period, local transporters bought 15,738 trailers.

Bleak future for motorists

Consider this: There are about 9,541 mini-buses, famously known as "Daladala" cruising in Dar es Salaam's roads. By the end of last year, there were about 30,000 Bajaj in the country-with 95 per cent operating as passenger's vessels in Dar es Salaam.

Between January and October last year, imports of the motor tricycles surged by 2.8 per cent to 8,822 units compared to 2012, when the number was 7,810 units. Countrywide, 587,936 motorcycles were imported and registered in the country between 2008 and 2013.

There are chances half of these operate in Dar es Salaam city, adding to the huge number of users of the city's dilapidated and overwhelmed roads.

From January to October last year, 118,047 motor cycles were on the road-with many being used as passenger vessels famously known "boda boda".

Countrywide, there are 19,355 heavy passenger vehicles with a capacity of more than 12 passengers-mainly mini-buses and buses.

Now, we are already been told that in Dar es Salaam alone, there are a total of 9,541 registered mini-buses or Dala dala if you like-half of the total passengers vehicles imported and registered in the country during the past six years.

In terms of heavy passenger buses, Dar es Salaam is still the country's biggest hub. Over 80 percent of the 19,355 heavy passenger's vehicles cruise Dar's roads. Soon, there will be another extra 3,000 mini-buses on the city's roads if the ambitious UDA plan is fully implemented.

All of this means that there are already more vehicles, tricycles and motorbikes in the city than the existing infrastructure-and the number is set to grow even more in the next decade as the middle class feed their appetite for personal vehicles.

Just a decade ago, the importation and registration of vehicles was very low compared to the surge recorded between 2008 and 2013. Yet the city's infrastructure remains the same, with abysmal upgrades marred by lack of finances and poor planning.

The Dar es Salaam road infrastructure is still not fully developed. The entire region has 260 kilometres of trunk roads, 542 kilometres of regional roads and another 578 kilometres of feeder roads. According to statistics obtained from the regional commissioner's office, 112 kilometres of those regional roads and 98 kilometres of feeder roads are dilapidated.

Defining the traffic jam

According to the Organisation for Economic Co-operation and Development report of 2007 on managing urban traffic congestion, there is no single broadly agreed definition of traffic congestion due to the fact that it is both a physical and a relative phenomenon.

Physical phenomenon traffic congestion is a situation where demand for road space exceeds supply and is reflected by slower speed, longer trip times and increased motor vehicle queuing while a relative phenomenon is the difference between road performance and road user's expectations. Today, it is obvious that Dar es Salaam faces physical phenomenon traffic congestion because the demand for road space exceeds the government's capacity to construct and upgrade the existing infrastructure.

Said an investor who did not want to be named: "Our traffic lights and roads were designed to accommodate the size of the economy of the 80s and 90s…today our economy as well as population has changed drastically and results is painful traffic jam."

According to the investor, while traffic lights were introduced worldwide to ease the movement of vehicles, they appear to have failed in Dar es Salaam-paving the way for traffic police to lead the motorists.

But taking into consideration the data on importation and registration of vehicles, the traffic jam in Dar es Salaam has already overwhelmed traffic police plus traffic lights.

"With the current pace of vehicle importation and registration, it's obvious that drastic measures are needed to salvage the city from the already looming traffic jam crisis," taxi driver James Mushi told The Citizen.

Mr Innocent Macha, an engineer based in Dar es Salaam few years ago, designed and presented what he termed the best plan to decongest the city's roads, but that proposal was shelved by the ministry of infrastructure.

Mr Macha was one of the designers involved in designing the much-acclaimed Nairobi highways built by the Mwai Kibaki regime.
 
Mkuu n00b

A very thought provoking topic - Thank you.

Here are my two-cents in a way of contribution.

The problem of traffic congestion can be viewed as a problem of economic growth, a problem of affluence or a problem of poor planning. Whenever demand for travel exceeds the infrastructure capacity (the supply side) congestion is bound to happen. This is true for most cities of the world. There are three categories of solutions to help alleviate congestion.
In the short run we can do the following: (i) manipulate the demand side (Travel Demand Management) to reduce the size of the demand, and/or (ii) manipulate the supply side (infrastructure redesign or re-assigning). In the long run we (iii)need to plan our cities such that major attractors of trips are not concentrated in few places creating chock-points. The following elaborates examples of the three solution strategies mentioned here.


Manipulating the Demand Side (Short-run)
What we see on the streets of Dar es Salaam are individuals making person-trips to fulfill their daily needs. These person-trips in turn result in vehicle-trips which are the main causes of congestion. The trick is how to reduce the number of vehicle-trips (particularly during peak periods) without affecting the number of person-trips. There are many ways to do this.

For example, we can encourage the use of public transportation by making it clean and use faster dedicated rights of way, ROW (like DART). It makes no sense having these humongous SUV with one or two people occupying the same space as a daladala capable of carrying 10-15 people. If we have clean public transportation with dedicated ROW then we can have park & ride areas in the city outskates where individuals can park their cars and ride the buses or light-rail transit services. Now anyone who insists to bring their cars (with less than say 3 people) into the downtown area during certain times of the day they can be charged hefty toll (High Occupancy Toll or HOT roads) by clocking their license plates and send them a bill (several cities in Europe, USA, Asia use this system).


Manipulating the Supply Side (Short-run)
Besides building dedicated transit lanes, HOT roads, park & ride facilities, widening existing roads, we need to encourage individuals wishing to use their bicycles and mopeds to do so safely. At the moment it is suicidal to bike in DSM. We could learn from countries who encourage biking like the Scandinavian countries or China. Ubungo-Posta is a bike-able stretch if there are safe bike lanes. I have always wondered why the DART system uses buses instead of light rail which could have much higher capacity – BUT I do not want to second-guess the planners who recommended the system


City & Regional Planning (Long-run)
Sometimes we tend to create congestion problems ourselves by some of the oxymoronic planning decisions we take. Why keep concentrating trip attractors in downtown DSM even as we speak. In the long-run there is a need of making city master-plans place strategic activity center (trip attractors and generations) such that travel demand and supply can be properly managed. This is a long term process but if not taken care of now, it may be too late to mitigate transportation woes of the future.
 
...

Mr Innocent Macha, an engineer based in Dar es Salaam few years ago, designed and presented what he termed the best plan to decongest the city's roads, but that proposal was shelved by the ministry of infrastructure.

Mr Macha was one of the designers involved in designing the much-acclaimed Nairobi highways built by the Mwai Kibaki regime.

Mkuu do you know if Eng. Macha's proposal to decongest DSM is available in the public domain (preferably in electronic form)?

Cheers.
 
Mkuu n00b

A very thought provoking topic - Thank you.

Here are my two-cents in a way of contribution.

The problem of traffic congestion can be viewed as a problem of economic growth, a problem of affluence or a problem of poor planning. Whenever demand for travel exceeds the infrastructure capacity (the supply side) congestion is bound to happen. This is true for most cities of the world. There are three categories of solutions to help alleviate congestion.
In the short run we can do the following: (i) manipulate the demand side (Travel Demand Management) to reduce the size of the demand, and/or (ii) manipulate the supply side (infrastructure redesign or re-assigning). In the long run we (iii)need to plan our cities such that major attractors of trips are not concentrated in few places creating chock-points. The following elaborates examples of the three solution strategies mentioned here.


Manipulating the Demand Side (Short-run)
What we see on the streets of Dar es Salaam are individuals making person-trips to fulfill their daily needs. These person-trips in turn result in vehicle-trips which are the main causes of congestion. The trick is how to reduce the number of vehicle-trips (particularly during peak periods) without affecting the number of person-trips. There are many ways to do this.

For example, we can encourage the use of public transportation by making it clean and use faster dedicated rights of way, ROW (like DART). It makes no sense having these humongous SUV with one or two people occupying the same space as a daladala capable of carrying 10-15 people. If we have clean public transportation with dedicated ROW then we can have park & ride areas in the city outskates where individuals can park their cars and ride the buses or light-rail transit services. Now anyone who insists to bring their cars (with less than say 3 people) into the downtown area during certain times of the day they can be charged hefty toll (High Occupancy Toll or HOT roads) by clocking their license plates and send them a bill (several cities in Europe, USA, Asia use this system).


Manipulating the Supply Side (Short-run)
Besides building dedicated transit lanes, HOT roads, park & ride facilities, widening existing roads, we need to encourage individuals wishing to use their bicycles and mopeds to do so safely. At the moment it is suicidal to bike in DSM. We could learn from countries who encourage biking like the Scandinavian countries or China. Ubungo-Posta is a bike-able stretch if there are safe bike lanes. I have always wondered why the DART system uses buses instead of light rail which could have much higher capacity – BUT I do not want to second-guess the planners who recommended the system


City & Regional Planning (Long-run)
Sometimes we tend to create congestion problems ourselves by some of the oxymoronic planning decisions we take. Why keep concentrating trip attractors in downtown DSM even as we speak. In the long-run there is a need of making city master-plans place strategic activity center (trip attractors and generations) such that travel demand and supply can be properly managed. This is a long term process but if not taken care of now, it may be too late to mitigate transportation woes of the future.

Let us face it! The whole concept of planning in this country went out the window time immemorial! We don't have planners anymore, we have politicians who decide everything and the so called planners who only do what the politicians want. Promises of new roads and bridges are made during campaign time before election by all candidates including the the president to be. That's why it's useless to bring even the world's best planners in TZ because their "master plans" will end up clogging the already clogged cupboards of the planning agency. Unfortunately this is the order of the day in all government departments.
This is why a Mkuu wa Wilaya or Mkuu wa Mkoa is a personal choice of the President regardless of his or her qualification, so long as his/her job is to see that the President's campaign promises are carried out in their jurisdiction.
On the surface, the above situation may look normal, but strictly speaking, this is in fact the very cause of corruption in the whole system.
The concept of 'separation of powers' is something that must be appreciated and respected in the first place. And then there must be no politics in the civil service if the government is to implement development plans in accordance with the planners' recommendations.
 
Let us face it! The whole concept of planning in this country went out the window time immemorial! We don't have planners anymore, we have politicians who decide everything and the so called planners who only do what the politicians want. Promises of new roads and bridges are made during campaign time before election by all candidates including the the president to be. That's why it's useless to bring even the world's best planners in TZ because their "master plans" will end up clogging the already clogged cupboards of the planning agency. Unfortunately this is the order of the day in all government departments.
This is why a Mkuu wa Wilaya or Mkuu wa Mkoa is a personal choice of the President regardless of his or her qualification, so long as his/her job is to see that the President's campaign promises are carried out in their jurisdiction.
On the surface, the above situation may look normal, but strictly speaking, this is in fact the very cause of corruption in the whole system.
The concept of 'separation of powers' is something that must be appreciated and respected in the first place. And then there must be no politics in the civil service if the government is to implement development plans in accordance with the planners' recommendations.
Very well said.
 
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