___________________________________________________________________________
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