Saturday, August 18, 2012

5 deadly sins of urbanization



STREETS heavy with vehicles honking their horns and spewing deadly carbon monoxide from their tailpipes in an early-morning rush hour, scores of people rushing toward their destinations in various directions, shanties mushrooming amid towering skyscrapers outlining the urban skyline. These are among the common scenes in today’s cities.
But fast-paced urbanization has resulted in severe income inequality and poor living conditions not only for the poor people but the rich, as well. As a result, many cities are desperately struggling to balance economic growth while uplifting the quality of life of their citizens.
Fortunately, city innovations are now making possible solutions to these problems. A study-tour by the East-West Center’s 2012 Spring Jefferson fellows revealed some of the ways by which cities across Asia are fighting the sins of urbanization.

Inefficient mass-transport systems
AS an offshoot of rapid citification, many cities get snarled in huge traffic jams, especially at peak hours. This is exactly what happened in Guangzhou, China, where the traffic became so bad that by 2003, city authorities had to start planning. Their solution was a Bus Rapid Transit (BRT) system.
Guangzhou’s BRT system has since been touted as the best, if not one of the best, in the world, since its completion in 2010.  It turned the city’s once-packed highways into a model of peace and calm, where motorists could safely and easily ply the streets while passengers walk about not fearing that an incoming vehicle would run them over.

 
Karl Fjellstrom, the regional director for East and Southeast Asia of the Institute for Transportation and Development Policy (ITDP), said the BRT system was the best solution and the cheapest.
“BRT is 10 to 20 times cheaper than Metro. The Guangzhou BRT costs about $5 million per kilometer. It’s much faster to plan and design and implement a BRT compared to a Metro. So these are a couple of very basic factors why cities are interested in BRT,” Fjellstrom told the Jefferson fellows.
Guangzhou’s BRT system has 31 routes and each station could have more than 27,000 passengers during peak hours. It is linked and easily accessible to and from the Guangzhou metropolis, malls, pedestrian lanes, the greenways and the public bicycle system, where people could rent bikes to go to and from places within the city. Apart from designated bike lanes, riders can also pass through the greenways that Guangzhou has built all over the city.
“The BRT really works well with all modes. It’s good for buses in traffic, it’s very convenient for passengers to get to the station and only a 35- to 40-second wait. So it’s really for pedestrians, buses, traffic; it’s a good solution,” Fjellstrom said.
There is also now a Bike Rapid Transit (BIRT) system being developed in South Korea. At the Korea Transport Institute (Koti), engineers and other experts have proposed a temperature-controlled and elevated bicycle highway.
The Koti said that with the BIRT, cyclists can use their bikes any time of the day and in any kind of season. Usually, weather conditions and other barriers, like the lack of exclusive bike lanes in cities, prevent people from using bicycles more often. This is unfortunate, the Koti said, because bikes present not just another means of transport but a “viable green-transportation alternative.”
The envisioned enclosed bike highway will have video-monitoring systems that can be used to track accidents and other emergency situations; it also has other features that would address terrain gradients, emergency-evacuation routes, links to other BIRTs and bicycle safety. The only debate at this point is the cost, which is still being determined as of this writing.
“It is faster than traditional bicycles, faster than public transit at peak time, and allows medium- and long-distance movements using minor energy consumption,” the Koti said. “The planned Yeouido monorail transit system can be replaced by a [BIRT] linking high-speed bicycle lanes along the Han River park district.”

Traffic
APART from making mass-transport systems easily accessible and efficient, managing transportation congestion can also be done by managing the demand for vehicles. And the best way is to increase their cost. This is one of the reasons there are very few cars in Singapore, which is one of the most expensive places—if not the most expensive place—to own a car.
According to Singapore’s Center for Liveable Cities, owning a car is not as simple as going to a showroom and buying one. Before you buy a car, you first have to own the right to buy one. This is done monthly through a tender where aspiring car owners would spend around S$50,000 or around P1.7 million to become a car owner. This is on top of the cost of the car itself and an over 200-percent tax on the car to be bought.
The Center’s Deputy Executive Director Hsing Yao Cheng said that after buying the vehicle, car owners continue to pay more to be able to enter the Central Business District (CBD) during certain times of the day. These are called “congestion charges,” which have been around since 1975. Today, these congestion costs are around S$0.5 to S$5 (P17 to P170), depending on the time of day.
“The price of the tender depends on the demand. So right now, we are on an upward [track], everybody is feeling good and a lot of people want to own a car. We are on a very high level now, at S$50,000 or more. During the recession it [went down to] S$5,000 [P170,000] and as low as S$50 [P1,700],” he said.
Another solution that some countries, including South Korea, Indonesia, Mongolia, Brazil and Sweden, are already considering, is the Automated Container Transport (Autocon) system which was recently developed by the Koti.
The Autocon system seeks to improve the way container terminals work and how they transport container vans through various parts of the city. If adopted, this would put trucks off city roads and ensure the efficient delivery of goods and services through city centers and beyond.
The Koti also explained that Autocon has five major characteristics. It is a conveyor system-type transport system with a loop-shaped structure that saves energy; uses a linear-induction motor (LIM) that reduces the weight of the system and makes it carbon dioxide emission-free; uses solar power and has an automated high-stack container building.
Experts at the Koti said the Autocon system can extend as long as 150 kilometers and done underground or at street level, depending on the needs of the city. The cost is still being determined.

Shantytowns
CONGESTION in many cities is not only seen in traffic jams and insufficient mass-transport systems; it is all the more evident in the growth of slums. The lack of housing facilities and spaces to build them makes shanty homes the easiest way to have a roof over one’s head in crowded cities.
Fortunately in Singapore, the days of their “shantytowns” are over since the government provided every citizen the means to own a home. The houses produced in Singapore’s mass-housing program are comparable to posh condominium units in some exclusive places in certain cities.
One of Singapore’s mass-housing projects is the Pinnacle at Duxton. It is the first 50-story public-housing project in the city-state and has 1,848 apartments situated in seven towering blocks. It also has an exclusive sky bridge that has a running track, open gym, playground, and pocket gardens where residents can relax and enjoy a view of the Singapore skyline.
Residents are able to afford the houses through their Central Provident Fund, which comes from their salaries. The rates to buy the units are very low and with the provident fund paying for each unit, Singaporeans oftentimes do not need to spend a single cent to live in a home that is spacious and convenient.
But these mass-housing units are targeted for couples starting a family. Each family is required to keep the unit for a period of five years after which it can be sold so the family could buy another property with a higher value. Retrenched or unemployed residents are granted deferment for dues for a period of six months.
Prof. Stephen Cairns, scientific coordinator at the Swiss Federal Institute of Technology Zurich, said that while Singapore’s high-rise mass-housing development was impressive, it would not be applicable in many other cities worldwide.
“In many parts of the world [this] model simply cannot work because Singapore is its own state,” Cairns said. “The idea of city-state is very, very important for Singapore. They can do things here that you simply cannot do in many, many other parts of the world.”
Cairns said there are other housing models that would suit the needs of other countries. This includes an incremental housing proposal that his team is preparing for some developing countries.
He said the housing projects would not only deal with the structure of the homes but also take into consideration the growth and size of the family, its income and the size of its house.
The project would use these points to build the housing projects. The structure would not only take into consideration the housing requirements of families but also their sources of livelihood, such as small stores or workshops.
The main structure and facilities like plumbing are envisioned to be funded by the government; the rest of the spaces, including the house, would be paid for by the families who will own these spaces.
“It’s not a model of a slum but we try to learn from the logic of a slum,” Cairns said. “This is a theoretical kind of project but we are building a prototype in Batam [Indonesia].”

Water shortage
ONE of the ways cities can conserve water is through recycling. This is already being done in Singapore and in Songdo, South Korea. Water is recycled for use in recreation facilities and in watering plants.
Wastewater could be recycled by purification methods through microfiltration, reverse osmosis and ultraviolet technologies. These remove impurities that are usually found in sewage water.
But in Singapore, water recycling has gone so far as to be bottled and drunk by people. To Singaporeans, this bottled water is called NEWater, which is produced by the Public Utilities Board (PUB).
NEWater has boosted efforts to conserve water in Singapore. The city-state has been known as a water importer but recent efforts, which include expanding rainwater-catchment areas and NEWater, have made Singapore self-sufficient in water resources.
Singaporeans consider water issues a matter of “national security” so everyone does his/her part to help, either by using only what is needed or not throwing waste in water-catchment facilities. These water-catchment facilities include canals found in various places in the country.

Tons of garbage
WITH cities having more people in it, the amount of waste also increases. One of the ways waste management is being done in Songdo, known as South Korea’s smart city, is to connect the garbage chutes of homes straight to the waste-management facility.
The secret? Miles and miles of huge underground pipes. This “centralized pneumatic waste-collection system” collects both wet and dry waste and eliminates the need for garbage trucks and the need for manual segregation in waste facilities. Hospital waste, however, follows a different process since this is considered hazardous waste.
The power used to run the waste-management facility is natural gas which is part of the city-wide co-generation facility that also provides clean power and hot water to the whole of Songdo.

Decisive city planning
SINGAPORE’S master planner Liu Thai Ker said that while good intentions in city planning are good, they are not good enough. He said that ultimately, the key to sustainability in cities is foresight.
Ker said that planning for longer periods assures higher success rates than any short- or medium-term plans. Long-term plans, Ker said, involve planning for the next 50 years, at the very least; the shorter the timeframe, the more inaccurate the plans would be, he said.
One of the mistakes made by cities, he said, is complementing city planning with the tenure of governments; City planning must be firm but needs to go beyond government tenures, he said.
“Good intentions are not good enough,” Ker said. “[A city planner must think] I am not going to build a city, I’m going to build an environment.”
Indeed, if innovations are combined with outstanding political will, they have the power to slowly make traffic, inefficient mass-transport systems, shantytowns, water shortage and voluminous city waste a thing of the past.

In Photo: The Guangzhou BRT system is one of the world’s finest examples of an efficient mass-transport system and One of the incremental housing models prepared by Cairns’s team. (Photos courtesy of the Institute for Transportation and Development Policy)

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