study on economic partnership projects

Source: Study Team
Truck Traffic/day
2,500
2,000
1,500
1,000
500
0
Truck
y = 0.0057x - 311.22
R 2 = 0.7813
0 100,000 200,000 300,000 400,000 500,000
3-16
GDP
Figure 3-12 Regression Analysis between GDP and Traffic Demand (Trucks)
(e) Traffic Assignment Simulations
(i) Forecast System
The traffic demand on the Second My Thuan Bridge was forecasted based on the road
network simulation, which includes road links such as NH1, NH80, other related road sections,
expressway with interchanges and new bridges. Necessary information on road conditions (section
length, design speed, capacity and Q-V formula showing the relationship between traffic volume
and travel speed) is assigned to each road section. JICA STRADA developed by JICA was the
applied system and user equilibrium was the traffic assignment model.
(ii) Toll Fares
The toll rates are controlled by the MOF (Circular No 90/2004/TT-BTC). The rate applied
to cars in the Southern Expressway Study was USD 0.08/km (VND 1,280/km). The same toll rate
was also applied to cars in this <strong>study</strong> while toll rates for other vehicle types were decided referring
to the passenger car unit (PCU) equivalent. Such toll rates are shown in Table 3-5
Table 3-5 Toll Rates on the Expressway
Vehicle Type Toll Rate
Car 1,280
Light Bus 1,920
Medium & Heavy Bus 3,200
2-axle Truck 2,560
3-axle Truck 3,200
4 and more axle Truck 3,840
Source: Calculated in this <strong>study</strong> based on SAPROF <strong>study</strong> on Southern Vietnam Expressway, 2007, JBIC
Unit: VND/km