INTRODUCTION
Income disparities are high in
India. A small fraction of the population can afford cars and is
buying them feverishly as incomes rise in an ascending economy.
What makes Indian traffic unique is that this small group is
quickly filling up road space while everyone suffers from
congestion. The 20/80 rule shows how great benefits are possible
by presenting SkyTran as a public transport alternative much
better than even the cars owned by this upper class. SkyTran not
only can decongest roads, it can create amazing improvements in a
city by reducing travel times drastically. Since the capacity of
Skytran is high and costs low, it can provide the same benefits to
the masses too thus truly revolutionizing urban transport.
20-80 Rule Applied to Urban Transport
Author: Ankur Bhatnagar ©2006
20-80 rule is one of the most common tools used by business
consultants and analysts. It is a general principle and it means
that often a large part (“80%”) of most effects or phenomenon is
attributable to a very small set of reasons or factors (“20%”). It
is useful because it implies that a large part of a problem can be
solved by just controlling a small number of factors, or a major
part of an opportunity can be quickly realised by focusing on a
small set of controls.
The numbers 20 and 80 are not to be taken literally, they just
mean very small and very large respectively.
As examples, we may often find that 80% cost of inventory for an
enterprise may be due to only 20% of items; 80% of sales comes
only from 20% customers; world's 80% crude oil is produced by only
20% oil fields; 80% wealth is in the hands of only 20% population,
and so on
In this article, we see how this 20-80 rule is applicable to urban
traffic, and whether this rule brings out new lessons to be
learnt.
It is well known that in India only a small fraction of people
owns cars. If you peep out of your window and look at the street,
you will find a very large number of cars filling up the roads,
parking lots, driveways, walkways, residential areas, and almost
all open space accessible to the wheels of the cars. Only a small
fraction of space is actually used by buses or mini-buses that are
used by poor for transport.
Stating it in the format of the 20-80 rule, it turns out that only
20% of population (car users) ends up causing 80% congestion!
While this fact is well known to everyone, the planners miss the
opportunity when they go further from here. Most planners continue
targeting the 80% population, which contributes to only 20% of
congestion.
They call for more buses and more mass transport options to ease
the traffic. They also insist that the mass transport must be
affordable by poor. The resulting scenario is familiar - search
for more space on public land, reservation of space for mass
transport (e.g., BRT and Metro Rail), reduction of space for cars,
and high costs/low ticket pricing resulting in subsidy burden.
When people don’t switch from cars to mass transport, there are
demands to increase the taxes on cars and fuel. And, by the way,
the switch from cars to mass transport is still marginal
In the end, everyone is still in the same situation. Poor people
were already travelling in buses. The improvement for them is only
marginal. If you target solving only 20% part of the problem, in
the best case, that’s what you will get. While poor have more
buses, their travel speed and travel experience remains pathetic,
as buses and trains simply don't increase speed. They have rigid
routes, must stop at all stations and require a lot of walking,
waiting, standing, halting, and in the process, killing speed and
convenience.
The car users make shriller noises as they are made to pay still
higher taxes and the road space decreases for them, or at least it
doesn’t increase as much.
Then there is a strong and valid suggestion that the cost of cars
should in fact be lowered so that more people can travel faster
and in comfort.
The debate within the transport expert community ends up being
chaotic, contradictory and confusing.
The 20-80 rule tells us to look at the situation differently. It
says that since 80% of the problem (congestion) is only because of
20% of users, create solutions for those 20% users rather than for
80% users who are already managed.
Let us review the attributes of such a solution:
-
It can be a lightweight and cheaper solution,
as it needs to cater to far smaller number of users.
-
It doesn't have to carry the bulk of traffic,
although if it can, it would be an additional advantage.
-
The two segments - the car users and mass
users are two separate segments with separate needs. The former
are willing to pay much higher in return of a much better
service than the latter.
-
The performance attributes of the solution
must match and exceed that of cars. That means we must
acknowledge the superior travel experience of a car over mass
transit modes, which many planners fail to do.
-
While providing a service superior to that of
cars and therefore much better than mass transport, if it
provides sufficient capacity in low cost it could result in a
transport revolution for the city.
-
This solution must be different from cars,
i.e., it must not have the disadvantages associated with cars.
It must not add its own congestion, must not pollute, consume
lower energy and occupy minimal space.
Not only the cost of this solution will be lower, these targeted
20% users (car users) are also those who have the paying power as
they belong to the higher economic segment. That means this
solution doesn’t have to be subsidised.
The conventional approach tries to remove only 20% congestion by
deploying hugely costly transit systems for the masses. If the
ticket price is increased by even a rupee or two, the masses start
shifting back to older modes nullifying the new initiatives. Not
to mention the vociferous protests. The only alternative then is
to keep the ticket prices artificially low and look for other
revenue alternatives and still suffer losses.
The obvious question is what is that solution that targets 20%
upper end users and has the attributes listed above. Since this
solution has to be better than the car transport, let us first see
in what ways are cars better than mass transport mode. Note that
we are comparing the performance criteria from the point of view
of users, not planners. While planners have a long list why car is
a worse transport mode than mass transit, the users have an
equally long list on why they prefer cars to mass transit.
Cars have clear advantages over mass transit in the following
terms:
-
Comfortable seated travel
-
No waiting for the vehicle – always available
-
No inter-modal or same mode interchange
hassles
-
Car is faster as it doesn’t have to stop at
intermediate points except intersections and congestion
bottlenecks
-
No jostling with crowds
-
Minimal exposure to dust and grime
In essence, a user reaches his destination in lesser time and in a
better shape more ready and productive to attend to his purpose at
the destination in a car. The mass transit systems just cannot
provide these benefits. Experts often undervalue them. For
example, they feel that by providing air conditioning in buses or
trains the travel will become convenient, even when they take away
seats to make room for more people!
A solution targeting the
car user must at least match the above benefits. If this solution
can achieve this, provide even better performance at low enough
cost, and in capacity more than that required by top 20%
population, it would be nothing short of a revolution as masses
too will be able to take advantage of it.
Among the existing alternatives there is none that can fulfil the
above described need. Therefore, new ways will have to be
considered. Personal Rapid Transit technology, especially SkyTran
technology by UniModal is one such solution.
SkyTran takes the travel experience to the next level. It matches
and exceeds the performance criteria of a car not only from the
end users’ perspective, but also doesn’t have any of the
disadvantages associated with cars such as congestion, pollution,
space gobbling, high accident rate. It costs not only lower than
cars, it costs lower than even mass transit systems while
providing capacities unmatchable by mass transit systems. It beats
speed advantage of cars by orders of magnitude even if SkyTran
runs at half of its rated speed of 160 km/hr. As a result, SkyTran
will not only be successful in attracting car users, its
advantages will flow to all sections of users.
Also note that though at the moment decongesting is the main
objective of planners, SkyTran allows them to go beyond that. In
the absence of congestion people will be able to travel up to a
speed benchmarked by inherent upper speed limits on city roads.
However, SkyTran will allow them to travel much faster than that
with much greater safety thus achieving objectives much beyond
traffic decongestion.
For more information on
SkyTran, refer to
http://www.skytran.net and
http://www.unimodal.com.
The author may be contacted at
a.bhatnagar
at skytran.net. |