Roads andTransportTec hnology

CSIR

ROAD PAVEMENTS FORUM, ROODE VALLEI COUNTRY LODGE, PRETORIA, 14 – 15 NOVEMBER 2001

Vehicle Overloading Management in

Gauteng

Roads andTransportTec hnology

CSIR

Can you compete with this operator?

Roads andTransportTec hnology

CSIR

Overloading profits (per year)

OVERLOAD 5 tons 10 tons 20 tons

1 interlink truck R 54 000 R 108 000 R 216 000

10 interlink trucks R 540 000 R 1 080 000 R 2 160 000

100 interlink trucks R 5 400 000 R 10 800 000 R 21 600 000

Roads andTransportTec hnology

CSIR

80 - 85 % are legally loaded

15 - 20 % are overloaded

Heavy Vehicles

Heavy Vehicles

Cars

%DamageResult

EFFECT OF OVERLOADED VEHICLES

60 %

40 %

Road Roughness in QI units

0 20 40 60 80 100 120 140 1600.6

0.8

1

1.2

1.4

1.6

1.8

HDM Model CB-Roads DBSA Guide

VOCs of heavy trucks as affected byRoad Roughness

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Overload Control Strategy

Holistic approach

ALTERNATI

VE RO

UTES

LEG

ISLA

TIO

NCO

URT SYSTE

M

MANPO

WER

MO

NITO

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INFR

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RE

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G

Roads andTransportTec hnology

CSIR

Gauteng Overload Control Strategy

Key Performance Areas Identification of corridors/areas

for control Monitoring (Weigh-in-Motion) New/existing infrastructure Manpower Strategy for roving teams

Roads andTransportTec hnology

CSIR

Gauteng Overload Control Strategy

Key Performance Areas Information management  Inter-provincial co-operation Public awareness Consultation with stakeholders Sustainable funding Legislation

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

New England Southbound weigh-in-motion October 1999 to May 2001

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Roads andTransportTec hnology

CSIR

Overload Control Programme

• Heidelberg Traffic Control Centre• One shift from 10 Dec; two shifts from 1

Jan; three shifts from 1 Feb.• Technical committee addressing all issues

pertaining to Heidelberg TCC• Official opening is planned for end Feb

2002

Roads andTransportTec hnology

CSIR

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

10000

Months

No

. of

Ve

hic

les

Vehicles Weighed Vehicles Overloaded Vehicles Charged

All Weighbridges : Jan 1999 to Sept 2001

Operation Boima 1

Operation Boima 2

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Overload Control Statistics

1999/2000 2000/20012001/2002 (Apr-Sept)

Vehicles Weighed 14 802 18 274 27 837

Vehicles Overloaded8 617 (58%)

9 751 (53%)

10 152 (36%)

Vehicles Charged7 914 (53%)

8 568 (47%)

8 796 (32%)

Roads andTransportTec hnology

CSIR

ALL WEIGHBRIDGES : 1995 to Sept 2001

0

5000

10000

15000

20000

25000

30000

35000

40000

45000

1995 1996 1997 1998 1999 2000 2001

Years

No

. o

f V

eh

icle

s

No of vehicles weighed No of vehicles overloaded No of vehicles charged

Roads andTransportTec hnology

CSIR

0

5

10

15

20

25

30

Years

Av

era

ge

Ov

erl

oa

ds

(%

)

Single axle Tandem axle unit Tridem axle unit

Annual Average Percentage Overloads: 1996 to 2001

Roads andTransportTec hnology

CSIR

Average Percentage Axle Group Overloads: 1988 to 2001 for KwaZulu-Natal

0

5

10

15

20

25

Single axle Tandem axle unit Tridem axle unit

Roads andTransportTec hnology

CSIR

Top Offenders in Gauteng - 2000

CompanyAverage Overload

(kg)

Vehicles Weighed

Vehicles Overloaded

Percentage Overloaded

Vehicles Charged

Percentage Charged

Coaltrans 7 385 109 96 88 89 82

L. Potgieter 6 877 29 25 86 24 83

Cargo Carriers 6 876 27 21 78 16 59

KGB Hauliers 6 502 47 44 94 41 87

BVB Transport 6 150 58 56 97 56 97

Parsons Transport 5 441 17 16 94 12 71

Zero Unlimited 5 008 18 18 100 18 100

Tornado Transport 4 949 20 16 80 15 75

Interbulk 4 653 32 31 97 29 91

Smalberger 4 378 25 24 96 22 88

Roads andTransportTec hnology

CSIR

Overload Control Strategy

• Information management• Identification of and meetings with

frequent offenders• Monitoring changes in heavy vehicle

volumes• Upgrading weighbridge computer

facilities

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Roads andTransportTec hnology

CSIR

Overload Control in Gauteng

• Legislation

•Co-operation with Director of Public Prosecutions and Magistrates Commission re: overload seminars

•Database of outcome of charges of frequent offenders

•Responsibility of consignor/consignee

Roads andTransportTec hnology

CSIR

Overload Control Strategy

• Other issues• 5 % tolerance• Overload control meetings with Gautrans

Regional Controllers and Metro co-ordinators: technical and enforcement issues