III DESCRIPTION OF THE PROJECT A Type of Project
E. Interchange Design 1 Introduction
3. General Design at Interchanges
a. Interchange #1 with the HCMC-Trung Luong Expressway (IC1) 141. IC1 is located at section Km 00+700. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the HCMC – Trung Luong Expressway: speed =120km/h (iii) Interchange ramp (direct): speed=50km/h
(iv) Interchange loops: speed=40km/h
142. During the design process, many solutions were compared, due to the location of the interchange which has several control points: the transmissions lines Cao Dai Church in My Yen commune, My Nhan bridge, local road etc. Basic advantages and disadvantages of two alternatives are shown in Table III.13 and alternative 2 is recommended.
Table III.13: Alternative Designs for Interchange IC1 Items Alternative 1 Alternative 2
Outline drawing ÑI TP.HO À CHÍ MINH SAI GON - TRUNG LUONG EX PRESSWAY BE N LUC - LO NG THA NH EXPRE SSW AY ÑI TRUNG LÖÔN G Ñ I N HAØ BEØ ÑÖÔØNG VA ØN H ÑA I 3 Ñ I HOÙC M OÂN ÑI TP.HOÀ CHÍ M INH SAI GON - TRUNG LUONG EXPR ESSWAY BE N LU C - L ONG THAN H EX PRE SSW AY ÑI TRUN G LÖÔNG ÑI N HA Ø BE Ø ÑÖÔØNG VA Ø NH ÑA I 3 Ñ I HOÙC MOÂN 0+000 0+500 1+000 1+500 Features
Type of interchange is cloverleaf full. The ramps of interchanges connecting HCMC – Trung Luong by viaduct (8 viaducts).
According to this shape, there are 2 weaving points → function of these weaving points are to reduce conflicts which have worst affect on traffic organization on the main route. Traffic organization is convenient and clear. Increasing traffic capacity and traffic safety. Decreasing management efficiency due to 4 toll plazas installed.
Scope of ramps can prolong on My Nhan bridge by acceleration and deceleration lane. Impacts on Cao Dai Temple, Scope of ramps affect a tower of 500kV transmission line. Construction cost is higher because of larger and land acquisition area. Construction 4 toll plaza and 8 viaducts.
Type of interchange is double trumpet. The ramps of the interchange connect to HCMC – Trung Luong by viaduct (4 viaducts). Ramps of interchanges connecting Ben Luc – Long Thanh by one flyover.
According to this shape, there are no weaving points so traffic organization is convenient and clear. Increasing traffic capacity and traffic safety.
Increasing management efficiency due to only one toll plaza installed.
No impact on Cao Dai Temple and 500kV transmission line.
Construction cost is lower because of less occupation and land acquisition area. Construction 1 toll plaza and 4 viaducts
b. Interchange 2:
143. National Highway 1A Interchange is in Ho Chi Minh City, and links the expressway at Km3+420 to National Highway 1A. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the National Highway NH1A: speed =80km/h
(iii) Interchange ramp : - direct: speed=50km/h (iv) Interchange loops: speed = 40km/h
144. As system traffic of this region is very complex, the HCMC– Trung Luong Expressway after completion some of the traffic volume on NH1A will be attracted to HCMC – Trung Luong Expressway. This should reduce some of the congestion but the local area contains many industries such as the My An and Hiep Luong industrial estates which are currently expanding. There is also the Phu Trieu shoe factory and residential area located nearby.
145. Basic advantages and disadvantages of two alternatives are shown in Table III.14 and alternative 2 is recommended.
Table III.14: Alternative Designs for Interchange IC2 Items Alternative 1 Alternative 2
Outline drawing nhaø m oà CHUØA xn giaày da phuù trieàu Bình C haùnh nhaø thôø CHU Ø A CHUØA Phöôùc T hòeân 3+500 4+000 PH AÙP T AÏNG ÑI T P.HO À CHÍ MIN H ÑI LO NG A N ÑI NHAØ BEØ Ñ I HO Ù C M O Â N PHAÙP T AÏNG ÑI T P.HO À CHÍ MIN H ÑI LO NG A N ÑI NHAØ BEØ Ñ I HO Ù C M O Â N nhaø m oà CHUØA xn giaày da phuù trieàu Bình C haùnh nhaø thôø CHU Ø A CHUØA Phöôùc T hòeân 3+000 3+500 4+000 Features
• No interchange only a flyover. Ben Luc – Long Thanh Expressway is over National Highway 1A. No connection between the two roads.
• Transport on National Highway 1A that wants to travel on Ben Luc - Long Thanh Expressway must go through HCMC-Trung Luong by the road quite a distance about 12km. Especially in the future of this region has some industrial parks. So will cause traffic problems.
• Impacts less on the neighborhood and residential areas nearby.
• Organized transportation simple and convenient as there two separate roads. • Construction costs will be lower because of smaller occupation and land acquisition area.
• Type of interchange is diamond type, Ben Luc – Long Thanh Expressway is over NH1A, under the flyover with a roundabout.
• Transport on National Highway 1A to travel on Ben Luc - Long Thanh Expressway easily. Therefore the transport of industrial zones will be convenient, saving significant fuel costs and time for drivers. The building of interchange will attract traffic volume
increased significantly so large traffic volume of NH1A. In planning future road base width is 120m.
• Impacts on part of a shoe factory in Phu Trieu and some residents of nearby. • More complex because there is one roundabout.
• Construction cost is higher because of larger occupation and land acquisition area. Propose Recommended alternative
c. Interchange with National Highway 50 (IC3)
146. Interchange IC3 is in Ho Chi Minh City and links the expressway at Km 13+550 with National Highway 50. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the National Highway NH50: speed =80km/h
(iii) Interchange ramp : - direct: speed=50km/h (iv) Interchange loops: speed=40km/h
147. Alternative Designs for Interchange IC3 were considered during the design process Control points include:
(i) The East and South of interchanges lies the Ong Keo river and system of interlacing canals.
(ii) North of the interchange there is a resettlement area.
(iii) West of the interchange is a system of interlacing canals and some tombs. (iv) The interchange is near residential areas.
148. Basic advantages and disadvantages of two alternatives are shown in Table III.15 and alternative 2 is recommended.
Table III.15: Alternative Designs for Interchange IC3 Items Alternative 1 Alternative 2
Outline drawing
ÑI NHAØ BEØ ÑI VANH DAI 3
Ñ I LO N G A N Ñ I TP .HO À C H Í M INH SOÂNG OÂNG THÌN KHU MOÄ KHU MOÄ KHU MOÄ KENH RACH KENH RACH
ÑI NHAØ BEØ ÑI QLO 50 Ñ I TP .H O À CH Í M IN H SOÂNG OÂNG THÌN KHU MOÄ KHU MOÄ KHU MOÄ Ñ I LO N G AN
• Clover leaf type. NH 50 over the expressway.
• According to this shape, there are 2 weaving points → function of these weaving points are to reduce conflicts in traffic organization on the main route. Traffic organization is convenient and clear. Increasing traffic capacity and traffic safety.
• Decreasing management efficiency due to 4 toll plazas installed.
• Great impacts on a cemetery nearby. Impacted area is large.
• Construction costs are higher because of larger land acquisition area, Length of viaduct on ramp is longer.
• Trumpet type, NH 50 over the expressway. • No weaving points so traffic organization is convenient and clear. Increasing traffic
capacity and traffic safety. Driver easily type of interchanges. Phase 2, the interchange is designed in double trumpet type.
• Increasing management efficiency due to only one toll plaza installed.
• No impact on a cemetery nearby. Less impacts on area residents.
• Construction costs are lower because of smaller land acquisition area. Length of viaduct on ramp is shorter. Features Propose Items Outline drawing Features Propose Recommended alternative
d. Interchange with Nguyen Van Tao Road (North-South Road) IC4 149. Interchange IC4 is in Nha Be District, Ho Chi Minh City and links the expressway at Km21+850 with Nguyen Van Tao Road. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the Nguyen Van Tao road: speed = 60km/h
(iii) Interchange ramp : - direct: speed= 50km/h (iv) Interchange loops: speed= 40km/h
150. Alternative Designs for Interchange IC4 were considered during the design process. Control points include:
(i) The area east and south of the interchanges was been planned by HCMC. (ii) There are a number of canals in the area (Ca Noc, Ngon Lap Dau, and Ba Minh). (iii) North of the interchange is a shrimp pond, Ba Chua, Ba Chiem canals.
(iv) West of the interchange is the Muong Chuoi river. (v) The interchange is near residential areas.
(vi) This is the way North-South axis, where the large amount of traffic. (vii) Electric line 500kV and 220kV go in parallel with the line.
151. Basic advantages and disadvantages of two alternatives are shown in Table III.16 and alternative 2 is recommended.
Table III.16: Alternative Designs for Interchange IC4 Items Alternative 1 Alternative 2 Outline drawing ÑI NHÔN TR AÏCH ÑI QL 50 Ñ I KCN Ñ I TRUN G T AÂM HUYE ÄN N HA Ø BE Ø H IEÄP P HÖÔÙC CAÀU BÌN H KHAÙNH 19 800 19 900 20 000 20 100 20 200 20 300 20 400 20 500 20 600 20 700 20 800 20 900 21 000 21 100 21 200 21 300 21 400 21 500 21 600 21 700 21 800 21 900 22 000 SONG M UONG CH UOI §- êng NguyÔn B×nh .Nhùa §- êng NguyÔn B×nh .Nhùa §- êng NguyÔn B×nh .Nhùa
CAÀU VÖÔÏT BAØ CHIEÂM
ÑI NHÔN TR AÏCH ÑI QL 50 Ñ I KCN Ñ I TR UNG TA ÂM H UYEÄN NH AØ B EØ HIE ÄP P HÖÔ ÙC C AÀU BÌNH KHAÙNH R¹ch Khe Gi÷a R¹ch Khe Gi÷a NGUYEN HUU THO
NGUYEN VAN TAO
CAU BA CHIM RACH BA CHIM SONG M UONG CHUOI RACH BA C HUA
RACH NGON LAP DAU
Features
• Half clover leaf type. With the expressway over Nguyen Van Tao road. Ramp of
interchanges connecting with Nguyen Van Tao road by two separate ramps. Ramp of
interchanges connecting with the expressway by viaduct (4 viaducts).
• According to this shape, there are 2 intersections with Nguyen Van Tao road. Traffic organization isn’t convenient and clear. Decreasing traffic capacity and traffic safety. • Decreasing management efficiency due to 2 toll plazas installed.
• Construction of two bridges over Ba Chua
• Trumpet type, With the expressway over Nguyen Van Tao road. Ramps of connect with Nguyen Van Tao road by intersection. Ramp of interchanges connecting with Ben Luc – Long Thanh Expressway by viaduct (4 viaducts).
• According to this shape, there is 1 intersection of Nguyen Van Tao road. Connecting with present intersection create roundabout. Traffic organization is more convenient and clear. Increasing traffic capacity and traffic safety.
canal.
• Impacts on residential area nearby.
• Construction cost is higher because of larger land acquisition area, to building two bridges on ramp and two intersections; Length of viaduct on ramp is longer.
only one toll plaza installed.
• Construction of one bridge over Ba Chua waterway.
• Less impacts on the residential area nearby. • Construction cost is lower because of smaller land acquisition area. Building one bridge on ramp and one intersection. Length of viaduct on ramp is shorter.
e. Interchange with Ring Road 3 at Nhon Trach (IC5)
152. Based on analysis of network traffic of Dong Nai province as planned, replace Ring Road 3 interchange (Km38+370) for Km33 interchange to fit in the planning of the province is proposed. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the Planned Road: speed = 60km/h
(iii) Interchange ramp : - direct: speed= 50km/h (iv) Interchange loops: speed= 40km/h
153. Alternative Designs for Interchange IC5 were considered during the design process. Control points include:
(i) Electric line 500kV and 220kV go in parallel with the alignment. (ii) In this area there are many large canals: Cai Tu, Cai Tom, Tac Keo
154. Basic advantages and disadvantages of two alternatives are shown in Table III.17 and alternative 2 is recommended.
Table III.17: Alternative Designs for Interchange IC5 Items Alternative 1 Alternative 2 Outline
drawing
ÑI BEÁN LÖÙC
ÑI LONG THAØNH
ÑI B IE ÂN H OØA 32+500 33+000 33+500 34+000 CS = 3 3+780 .624 ST = 3 4+030.6 24 ÑI BEÁN LÖÙC
ÑI LONG THAØNH
Ñ I B IE ÂN H O ØA 500KV 220KV
Features •Type of interchange is Y type.
• Traffic organization is convenient and clear. • No impact on residential area.
• The flyover is curve and longer. • Construction cost is higher because of larger land acquisition area for building two flyovers, length of ramp is longer.
•Type of interchange is trumpet, The planning road is over Ben Luc–Long Thanh
Expressway by one flyover to fit in the planning of the Nhon Trach city of Dong Nai province.
• Traffic organization is convenient and clear. • No impact on residential area nearby, church and religion.
• Construction one flyover Ben Luc – Long Thanh Expressway. The flyover is straight and shorter.
• Construction cost is lower because of smaller land acquisition area. Length of viaduct on ramp is shorter.
f. Interchange with Nhon Trach Ring Road and Phuoc An New Ports (IC6)
155. Interchange IC6 is in Dong Nai province and links the expressway at Km 50+530 with the Phuoc An port. In the pre-feasibility study the interchange is designed as a diamond type with the expressway over the road to Phuoc An port. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the road to Phuoc An Port: speed = 80km/h
(iii) Interchange ramp : - direct: speed= 50km/h (iv) Interchange loops: speed= 40km/h
156. Alternative Designs for Interchange IC6 were considered during the design process. Control points include:
(i) OTL 500kV and 200kV go in parallel with the alignment. (ii) Near the underground gas line.
(iii) This is the main road out of Thi Vai port and Phuoc An port, traffic volume is very large.
(iv) Near the planned area for transport services.
157. Basic advantages and disadvantages of two alternatives are shown in Table III.18 and alternative 2 is recommended.
Table III.18: Alternative Designs for Interchange IC6 Items Alternative 1 Alternative 2 Outline drawing 49 5 00 49 600 49 70 0 49 80 0 49 90 0 50 00 0 50 10 0 50 20 0 50 30 0 50 40 0 50 500 50 600 50 700 5 0 8 00 ÑÖÔØNG BAO TP N HÔN T RAÏCH ÑI NHAØ BEØ Ñ I TP NHÔN TRAÏCH Ñ I CUÏM CA ÛN G TH Ò VA ÛI CA ÙI MEÙP ÑI VUÕNG TA Ø U BAI DO XE BAI DO XE ÑI NHA Ø BEØ Ñ I TP NHÔN TRAÏCH Ñ I C UÏM CAÛNG TH Ò V AÛI C A ÙI MEÙP ÑI VUÕ NG TA ØU BAI DO XE
Features • Type of interchange is diamond, Roundabout is an ellipse.
• Roundabout is an ellipse traffic safety is low, due to small radius.
• Cost to build each is equivalent.
• Type of interchange is diamond, Roundabout is a circle.
• Roundabout is circle; traffic safety is high, due to large radius.
• Cost to build each is equivalent. Propose Recommended alternative
g. Interchange with National Highway 51 IC7
158. Interchange IC7 is in Dong Nai province and links the expressway at Km 56+600 with with National Highway 51. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the road to NH51: speed = 80km/h
(iii) Interchange ramp : - direct: speed= 50km/h (iv) Interchange loops: speed= 40km/h
159. Alternative Designs for Interchange IC7 during the design process. Control points include:
(i) Near the dense residential areas and Phuoc Thai school.
(ii) The East of interchange, in the future is Vedan and Go Dau industry, Go Dau fuel port.
160. Basic advantages and disadvantages for design two alternatives (Table III.19) and alternative 2 is recommended.
Table III.19: Alternative Designs for Interchange IC7 Items Alternative 1 Alternative 2 Outline drawing 57+000 57+500 58+000 57+000 57+500 58+000
Features • Type of interchange is diamond.
• Construction retaining walls tunnel complex and more difficult. But reduce heighten embankment of 2km the last of project. • Construction cost is higher.
• Type of interchange is diamond. • Construction cost is lower
h. Interchange with the Bien Hoa – Vung Tau Expressway (IC8)
161. Interchange IC8 is in Dong Nai province and links the expressway at Km58+420 with the proposed Bien Hoa - Vung Tau Expressway at section Km58+420. Interchange calculation data:
(i) On the Ben Luc – Long Thanh Expressway : speed = 120km/h (ii) On the road to Bien Hoa - Vung Tau Expressway: speed = 120km/h (iii) Interchange ramp : - direct: speed= 50km/h
(iv) Interchange loops: speed= 40km/h
162. Alternative Designs for Interchange IC8 were considered during the design process. Control points include:
(i) Planned railway from Bien Hoa to Vung Tau (ii) Province Road 22
(iii) My Xuan Industrial park. (iv) 220 kV transmission line
163. Basic advantages and disadvantages of two alternatives are shown in Table III.20 and alternative 2 is recommended.
Table III.20: Alternative Designs for Interchange IC8 Items Alternative 1 Alternative 2 Outline drawing G a Ph öôùc Th aùi L T Ñ S : Km 33+ 7 50 58+000 S T = 57+90 7 .335 G a P h öôùc T h aùi LT Ñ S : Km 33 +750
Features • Type of interchange is a trumpet.
• According to this shape, traffic organization is convenient and clear.
• Impacts on province road 22, therefore culvert and viaduct are required.
• Reduce embankment height at the final line, but construction of flyover on Bien Hoa - Vung Tau Expressway with 6 lane.
• Construction cost is high.
• Type of interchange is a trumpet; The planning road is over Ben Luc – Long Thanh Expressway by one flyover to fit in the planning of Nhon Trach City of Dong Nai province.
• According to this shape, traffic organization is convenient and clear. • No impact on province road PR 22 and it is in accordance with planned residential Phuoc Thai commune.
• Embankment height at the final line, but the construction of flyover on Ben Luc– Long Thanh Expressway with width of 19.5m.
• Construction cost is low. Propose Recommended alternative