MODELLING VIETNAM’S
EXPRESSWAY NETWORK
Presented by: Ms. Le Thi Lan
Bizdev.asia
Summary
• Presentation by consultant
• Recently worked on an ADB assignment
supporting the Vietnam Expressway
Management Office
• Good progress with a GIS
• Next step is traffic modelling
• Joined this seminar to tell you about our
progress using GIS for a national network,
and to learn about traffic modelling
MINISTRY OF
TRANSPORT (MOT)
DIRECTORATE FOR
ROADS OF
VIETNAM (DRVN)
VIETNAM
EXPRESSWAY
MANAGEMENT OFFICE
(VEMO)
Vietnam expressway status
Completed
Under construction
Under detail design
Planned
224 km
487 km
242 km
>2,374km
6.7%
14.6%
7.3%
>71.4%
Name of Section
Length (km)
Phap Van - Cau Gie
29
Cau Gie - Ninh Binh
50
Ho Chi Minh - Trung Luong
39.8
Lang - Hoa Lac
29
Noi Bai - Bac Ninh”
33
Ha Noi-Lang Son (Thanh Tri Bridge to Bac Giang
boundary)”
19
Hanoi ring road 3
25
Total
224.8
* Note: some sections permit
motorbikes and are not strictly
expressway standard
HANOI
Vietnam
Expressway
Network
DANANG
HO CHI MINH CITY
North
Central
DANANG
South
HO CHI MINH CITY
Data Management by GIS
Objective:
1. Management of data on expressway alignments,
sections, interchanges, toll gates, traffic volumes,
implementation status, numbering system, parties
involved etc.
2. Single source of data available to decision makers,
Ministry staff
3. Publishing GIS data through a website shares
information with potential investors, consultants
carrying out studies, Government staff, the media
and the public
4. The GIS network model potentially forms a basis for
traffic modelling
Data Management by GIS
Data fields:
 Expressways:
1.
2.
3.
Expressway alignment data in uniform coordinate system
Attribute data: Length, status, developer, designer etc.
Interchanges

National highways:
1.
2.
3.
4.
5.
Complete road network
Status of planned widening of NH1 which is the key North-South
artery
Traffic count data
Tollgate locations and details
Traffic video

Others (Reference)
1.
2.
3.
Industrial Zones
Airports
Major Ports
Challenges in data collection
• No existing system for management of expressway
data
• Data held by multiple sources (Ministry, developers,
consultants etc.)
• Data often in spreadsheets (not geo-referenced), or in
various coordinate systems
• Data changes (alignment, ICs etc.) during project life
cycle from masterplan to detailed design
• Implementation schedule is continuously changing
Website Overview
1.
2.
3.
4.
5.
Data exported from GIS
Uses Google Maps as background
Google license terms (must be public access)
Data in layers which can be turned on and off by the
viewer
Zoom limit applied
View of Website
Website Menu
• Menu – layers can be turned on or off
Example Data for Expressway Section
Background Options – Google Map
Background Options – Google Earth
Expressway map + Industrial Zones
Website address
• The website can be seen at:
http://www.vn-project.com/
An expressway traffic model
• Previously traffic models in Vietnam have been
created by JICA projects using STRADA, but
have some disadvantages
- Software is not in general use by international
consultants
- Reliability / credibility of model and results
- Very few people can use / have access to data
• VEMO wants to be able to own and operate it’s
own model for scenario studies, revenue
analysis, feasibility study
Status of developing traffic model
1
Network model
Exists in GIS, but need to identify
as nodes and links, and confirm
timing of future network
development
2
Traffic data
2010 data available for some
national highways, but not latest
3
Administrative boundaries,
population, land use data,
vehicle ownership data
Available in principle
4
Studies on diversion ratios
Ongoing
5
Traffic modelling
Not yet started
Next steps
1.
2.
3.
4.
Develop rough traffic model
Continue to refine the model
Carry out in-house studies
Issue the model to investors / consultants as a
base model in their detailed studies
5. Use the model to review feasibility study results
6. Use the model to monitor forecast and actual
diversion ratios / traffic volume / revenues
Thanks to:
• ADB Project: PATA 7611-VIE: Strengthening
Institutional and Financial Arrangements, Operation
and Maintenance, and Governance in Road Transport
• Vietnam Expressway Management Office
Thank you very much!