The 5th JOINT WORKSHOP HELD IN HANOI, VIETNAM
From 29th Oct. to 2nd Nov.
The 5th Joint WS for the technology and policy research of Road and Transport washeld in Hanoi by NILIM, Japan and ITST, Vietnam (*) with sister organizations from 29th Oct
to 2nd Nov.
(*)ITST, Vietnam: Institute of Transport Science and Technology, Ministry of Transport,Vietnam
1. The theme for this time Joint WS
In this 5th Joint WS, picked up five themes focused on;1) Thang Long Bridge Rehabilitation Project2) Road Noise Investigation
3) Protective Coating for Steel Structures
4) Construction and Maintenance Method of Tunnel in Vietnam
5) Technology transfer Port and Harbor facilities Rehabilitation MaintenanceOpening ceremony

Opening address

Technical visit (Thang Long Bridge)

Road noise investigation

2. Outline of Technical Session
1) Thang Long Bridge Rehabilitation Project
There are two matters were discussed concerning to this Thang longproject. One is how to repair pavement, and the other is how toreconstruct the whole pavement.
Japanese side supports Vietnamese Side to make Vietnamesestandard for design, construction and maintenance of traffic
infrastructure such as roads, bridges, etc..
2) Road Noise InvestigationNILIM and ITST jointly accomplished the investigation about roadnoise at 6 locations along the Ring Road No. 3 in Hanoi, Vietnam.
Prior to the investigation, we had the meeting to share the results andthe each opinions of the pre-investigation in February 2012, and toconfirm the detail plan of the investigation in this time andmeasuring method of equipment using in the investigation.
As a result, we understood the below situation.
1) The main factors of high road noise level are the heavy traffic
volume includes extra big trucks and motorbikes, and increased
automobile horn number caused by traffic congestion.
2) The road noise level on the ground reduce in some level byshifting the through road traffic to elevated road or embankment
road located the center of the road cross section.
3) It is difficult to achieve the noise standard in nighttime at any
point in Hanoi, because the mitigated rules of noise standard forroadside areas supported social and economic development in thecountry, have already introduced in Japan, do not introduce inVietnam.
In the next joint workshop, we decided to discuss the below themes.
1) The results and each opinions of the investigation in this time2) How to estimate the reducing effect by each countermeasures ofthe road noise.
3) How to proceed in the investigation and research about roadside
air pollutions, and the countermeasure introduced ever in Japan.
3) Protective Coating for Steel Structures
From Japan side, heavy-duty coating system with fluororesin paintand innovative paint remover are presented. And also outline ofJapanese coating guideline was introduced. On the other hand,
Vietnam side introduced the need of paint remover in Vietnam andpresent state of protective painting for steel bridges in Vietnam. As aresult of discussions, both sides came to an agreement to undertake a
joint research on durability of fuluororesin paint topcoats in Vietnam
and to prepare draft technical guideline on painting for Vietnam byreference to Japanese guidelines.
4) Construction and Maintenance Method of Tunnel in Vietnam
The situation of construction relating to road tunnel in Vietnam, andthe contents of occurrence of defect and deformation in road tunnel
at both mountain area and urban area were reported and the causes ofdefects, the necessity of countermeasure and investigation werediscussed. Also, the introduction of basic notes, inspection,
investigation and countermeasure as for making-up maintenanceguideline draft for tunnel was discussed. As a result, the Vietnam
side will make up the draft by the end of 2013, technically supportedby Japan side.
5) Technology transfer Port and Harbor facilities Rehabilitation
MaintenanceJapan side presented Rehabilitation technologies for port facilities
and Viet Nam side presented Situation and maintenance for port
facilities.
Both sides discussed the matters relating to standard, material andtechnologies for rehabilitation works.
Japan side agreed to provide the technical document such as
standard, handbook and manual relating to repair and rehabilitate theport facilities in Japan.
Both sides agree to exchange the information technologies relating
as follows, (1) technology reinforced concrete structural repair in theharbor, (2) technology to protect steel pipe and (3) technology ofreinforced concrete structures by method of cathodic protection.

-3. Reference (History of the Cooperation)
This cooperation was kicked off at an occasion of the visiting of ITST at NILIM in
TSUKUBA, May in 2010 with Vice Minister of MoT, Vietnam, when both institutes agreed tothe Memorandum of the cooperation in the future scope, which means young and middle
researchers be involved in the cooperation in order to keep communication continuously in along term for making a knowledge network for mutual benefits.
2010.05 Tsukuba, Agreement on MoC (Vice Minister visited Tsukuba)
2010.09 1st Joint WS in Hanoi (Presentations in 5 fields including Port and Airport,
Discussions to identification of the themes of the cooperation)
2011.02 2nd Joint WS in Hanoi / Ho Chi Minh / Da Nang WS (Joint Research in the branchesof ITST, Drafting Roadmaps, Short Report on Hai Van Tunnel)
2011.06 Study Tour in Japan according to the Roadmaps
2011.07 3rd Joint WS in Hanoi (Presentations and Discussions, Thang Long Bridge and othertopics)
2012.01 4th Joint WS in Hanoi (Weathering Test research added in the Roadmaps, Short
Report on Thang Long Bridge Pavement Issue)
2012.06 Trilateral Workshop for the Interim Report in Tsukuba(International Research and Promotion Division)