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Congestion andTraffic Management Traffic and Transportation Engineer

Congestion and Traffic Management

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Due to rapid increase in number of vehicles, especially private vehicles and degrading nature of public transportation, congestion is almost unavoidable. This presentation deals with cause, effect and solution of congestion along with what should be the traffic management schemes to deal with this sort of problem in long term.

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Page 1: Congestion and Traffic Management

Congestion and Traffic Management

Traffic and Transportation Engineer

Page 2: Congestion and Traffic Management

Congestion in Kathmandu Valley:

Page 3: Congestion and Traffic Management

Traffic Congestion

Congestion in Bangkok, Thailand

Page 4: Congestion and Traffic Management

Major Contributor of Congestion:

Page 5: Congestion and Traffic Management

Effects of Congestion

Reduction in Speed & DelayObstruction to Emergency

vehicles

Page 6: Congestion and Traffic Management

Effects of Congestion(2)

Environmental pollution: Other effects:

Page 7: Congestion and Traffic Management

Economic Impact of Congestion

•Traffic Congestion cost of US cities rangesbetween USD 35 billion to USD 48 billion.

•Traffic jams cost Moscow USD 1.3 billion a year.

•Traffic congestion costs the South Africanbusiness USD 18 billion a year.

•Traffic congestion in Dhaka eats up USD 3billion a year.

Page 8: Congestion and Traffic Management

Economic Impact of Congestion(2):

Page 9: Congestion and Traffic Management

Time loss due to congestion

More than 1000 million passengers

travel by road every day, worldwide.

If a passenger lose 1 minute

everyday , in traffic congestion,

total annual time loss is

700,000 YEARS !!!(Source: Er. C.J. Johnson MIE)

Page 10: Congestion and Traffic Management

Thus Investment to reduce

traffic congestion is

INEVITABLE and

JUSTIFIABLE

Page 11: Congestion and Traffic Management

Framework for Congestion Reduction:

Land use

Awareness

Pricing

Management

Infrastructure

Information

The range of policy options(www.konsult.leeds.ac.uk)

Page 12: Congestion and Traffic Management

What is Traffic Management?

Engineering, Enforcement andEducational

Page 13: Congestion and Traffic Management

Why Traffic Management

•Not enough roads

•Cannot keep constructing new roads

Objectives:

Page 14: Congestion and Traffic Management

Traffic Management Process

Identify traffic

problems

Collect data

Analyze data &

formulate solution

Estimate cost of

improvements

Implement

measures

Monitor & fine-tune or

adjust measures

Consult

stakeholders

Secure efficient and

safe flow of people

and goods through

the road network

Conduct

information drive

Secure fund

Page 15: Congestion and Traffic Management

Traffic Engineering Measures

Traffic Engineering Measures

Advanced signal control

Signal timing review

Traffic sign / road marking

Road section

Intersection Geometry improvement

Turn restriction

Reversible lane

Traffic information system

Wide area Area traffic control system

Truck ban

One-way

Traffic sign / road marking

Page 16: Congestion and Traffic Management

Traffic Signals and their Coordination

Coordinated signals to maximize throughput and minimize delay

Distance

Tim

e

Shorter Travel Time

Tim

e

Uncoordinated Signals Coordinated Signals

Distance

Sig

nal

Page 17: Congestion and Traffic Management

Traffic Signal –Control Mode

Signal

Clock Vehicle Detector

Connection

Fixed Time Time-of-day (TOD) Actuation

Coordinated Area Traffic Control

Traffic responsive/adaptive

Traffic Control Center

Page 18: Congestion and Traffic Management

Traffic Demand Management

Traffic Demand

Management

Demand

suppressionRoad pricing

Restriction by plate number

Tele-working

Parking control/parking fee

Modal shift Use of public transport

Park & ride

Demand

dispersalTraffic information system

Staggered office / school hour

Flex time

Efficient use of

carHOV lane

Car sharing

Efficient cargo distribution

Page 19: Congestion and Traffic Management

Our present strategy - Dog chasing its

own tail

Road space will never catch up with

vehicle population.

Page 20: Congestion and Traffic Management

The solution

Replace private transport with public

transport.

This is the only solution that will work in the long

term.

Page 21: Congestion and Traffic Management

Comparison:

Page 22: Congestion and Traffic Management

Why Public Transportation???

Page 23: Congestion and Traffic Management

What Public Transport can do:

Before After

June 1, 2014 Hemant Tiwari 23

Page 24: Congestion and Traffic Management
Page 25: Congestion and Traffic Management

Public Transportation Should:

•Be Safe, Fast, Systematic and reliable

•Have good comfort and security level.

•Fixed Operating characteristics (Definite stop and stop duration, fixed time table)

•High accessibility

• Economical as well as environmental friendly

Page 26: Congestion and Traffic Management

BRT, famous latest form of Public Transportation

June 1, 2014 Hemant Tiwari 26

Exclusive lane for BRT

Page 27: Congestion and Traffic Management
Page 28: Congestion and Traffic Management

Improved bus system : Rs. 3000 Cr.

Time required : 1 year.

Road widening for planned 400 km. : Rs. 4000 Cr.

Total Destruction of city

33Km Metro carrying 5 % of total population

: Rs. 9000 Cr.

Metro 350 km. for whole of Bangalore

: Rs. 100,000 Cr.

The economics

Which one is better???

Page 29: Congestion and Traffic Management

BRT IN KATHMANDU RING ROAD( A CASE STUDY)

Page 30: Congestion and Traffic Management

Status Quo Analysis

Passenger patronage:

4240 & 2996

Page 31: Congestion and Traffic Management

Service frequency

Direction Time Service Interval (min)

Clockwise Peak 2

Clockwise Off Peak 2.86

Anti Clockwise Peak 2.31

Anti Clockwise Off Peak 3

Page 32: Congestion and Traffic Management

Promote Public Transportation

Page 33: Congestion and Traffic Management

Which lifestyle do we want?

Private transport has given us this

1

Page 34: Congestion and Traffic Management

Public transportation along with NMT and

walking

2

Page 35: Congestion and Traffic Management

DECISION RESTS ON YOU!!!

THINK!!! THINK!!!

Page 36: Congestion and Traffic Management

THANKYOU!!!