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2017/TPTWG/WKSP1/017

Traffic Weight Control

Submitted by: Thailand

Workshop on Regulating High Mass Heavy Road Vehicles for Safety, Productivity and Infrastructure

OutcomesBrisbane, Australia

3-6 April 2017

MINISTRY OF TRANSPORTTHAILAND

TRAFFIC WEIGHT CONTROL

• Department of Highways

(DOH) – 51,811 KM

• Department of Rural Roads

(DRR) – 47,303 KM

• Local government

– Local Roads – 352,465 KM

Thailand Road Network

451,579 KM.

ARTERIAL

LOCAL

COLLECTOR

Organization for Traffic weight control

-On Highways-

Department of Highways

(DOH)

Office of traffic weight control

-On Rural Roads-

Department of Rural Roads

(DRR)

Bureau of maintenance

Type of Traffic weight control

WEIGH STATION

- STATIC SCALE

VIRTUAL WEIGH STATION

- WEIGH IN MOTION (WIM : High speed

WIM)

SPOT CHECK

- PORTABLE SCALE

1 2 3

WIMsensors andelectronics

Roadsidevariablemessagesigns

Tracking sensors

Static Scale

Precleared trucks continue on the main line

Weigh Station

WEIGH IN MOTION (WIM)

Weighing System1. Weigh Station: for legally truck weighing2. Fast WIM: for classification of overload truck3. Monitor Room

Monitor Room

TCP/IP

WEIGH STATION

STATIC SCALE

Weigh Station used for legally truck weighing

VIRTUAL WEIGH STATION

VIRTUAL WEIGH STATION

WIM used for classification of overloaded trucks

VIRTUAL WEIGH STATION

สถานีตรวจสอบน า้หนัก

Virtual Weigh Station

• Located on low proportion of truck route• On the route use for transporting agriculture (seasonal)

SPOT CHECK Portable Scale used for legally truck weighing

SPOT CHECK

SPOT CHECK

Spot check’s equipment

MONITOR ROOM

Monitor Room to operate for visual and audio By process data from Weigh Stations and Virtual weigh stations

MONITOR ROOM

Weight control station in Thailand

DOHWEIGH STATION 70 stationsVIRTUAL WEIGH STATION 9 stationsMONITOR ROOM 1 stations

DRRWEIGH STATION 2 stations

*Most of weight control station type in DRR isspot check*

STATISTICS OF WEIGH STATION (DOH)

856,629

3,764,519

6,998,452

12,885,665

17,342,84818,989,177

21,670,726

26,758,59925,045,686

30,744,66529,020,216

30,156,74528,658,952122.1

95.7

20.314.6 11.1 8.2 5.3 6.2 5.4 4.5 4.4 5.1 5.0

0.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016

Over

weigh

t tru

cks/1

00,00

0 Tru

cks r

egist

ered

Numb

er of

all t

ruck

s re

gister

ed

YEARNumber of all truck Overwight truck:100,000 Truck

4 7 10 38 47 55 59 64 67 70 70 70 70

Overweight trucks/100,000 Trucks registered

Number of Weigh Station

Number of all trucks registered

STATISTICS OF WEIGH STATION (DRR)

Fiscal yearRegistered Truck

On highways (vehicle)

Number of Trucks which

are spot checked(vehicle)

Overload Truck

(vehicle)

percent of overload truck on

Rural Roads

2014 29,020,216 12,337 286 2.31

2015 30,156,745 10,588 195 1.84

Regulation of traffic weight

control

TRUCK

TRUCK

TRUCK

TRUCK

SEMI-TRAILER

FULL-TRAILER

SEMI-TRAILER

Allowable Load per Axle

7.06.5

6.3 6.36.3

11

10

8.5

8.0

7.5

5

6

7

8

9

10

11

12

0 1 2 3 4 5

Load

Pe

r A

xle

(To

ns)

Number of Axles

SIngle Tires

Dual Tires

REMARK : DISTANCE BETWEEN AXLE 1.2-1.8 m.

LEGAL TRUCK IN THAILAND

Single Tire

TYPE OF VEHICLE THAILAND(TONS)

ASEAN(TONS)

25 21

30 25

35 32

45 36

50.5 38

Weight control regulation compare with AEC

TRUCK

TRUCK

SEMI-TRAILER

SEMI-TRAILER

SEMI-TRAILER

Process to enfoecement Overloading Trucks

Spot checkWeigh Station

Court

Police Station

Highway Police

Arrest records

Weighing Process

Penalty Form Decide Penalty

Fine ≤ 10,000 BahtImprisonment ≤ 6 Months

or Both

Thank You

Virtual weigh station:VWS

Virtual Weigh Station

Virtual Weigh Station

Image processing