3.4 Proposed Project List

The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I Another grade separation that is planned to connect with the HHTP main gate (Location A) will also connect with the western-edge road of the NPIP. The main gate of the NPIP is located on the north side, and will be connected to the planned interchanges/ grade separations through the internal roads of the NPIP.

HHTP Main Gate ● HHTP High-Tech Industrial Zone (A) Planned Interchange/Grade Separation NPIP Main Gate (B) ● Reserved Area for Future Expansion Expansion Future for Area Reserved

HHTP

Source: VINACONEX Figure 3.3-7 Master Plan of Northern Phu Cat Industrial Park

3.4 Proposed Project List

A list of proposed road projects is summarized in Table 3.4-1. Proposed plans are grouped into six projects by type of structure and by phase.

3-19 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

Table 3.4-1 Project List for Roads

No. Project General description Specification Phase 1 Construction of To construct internal and Pavement (asphalt) 1 Internal and Zonal zonal roads planned in (incl. lane addition in Road A (2.5 km) Roads (Phase-1) HHTP for Phase-1 (Type and road widening in Road C (0.8 km)) I: 4,231 m, Type II: 6,956 Sidewalk (inter-locking) m, Type III: 7,988 m) L-type Side Ditch

Concrete Curbs

Lighting pole

Plants 2 Construction of To construct internal and 2 Pavement (asphalt) Internal and Zonal zonal roads planned in Roads (Phase-2) HHTP for Phase-2 (Type Sidewalk (inter-locking) II: 2,018 m, Type III: 1,429 m) L-type Side Ditch

Concrete Curbs

Lighting pole

Plants 3 Construction of To construct bridges and 9 Bridges (PC, I-girder) 1 Bridges and culverts planned in (No. 5-11, 13-14) Culverts (Phase-1) HHTP for Phase-1 1 Bridge (PC, Arch) (No. 15) Culverts (2@2mx2m) for 2 road sections (No. 17-18) 4 Construction of To construct bridges and 2 1 Bridge (PC, I-girder) (No. 12) Bridges and culverts planned in Culverts (Phase-2) HHTP for Phase-2 Culverts (2@2mx2m) for 1 road section (No. 19) 5 Construction of a To construct a grade 1 On-Ramp Grade Separation separation (overpass) (Overpass) connecting HHTP and Overpass Lang-Hoa Lac Highway (KM28+971) Vehicle Guardrail 6 Construction of an To construct an 1 On/Off-Ramps Interchange interchange (underpass) (Underpass) connecting HHTP and Asphalt Pavement for Underpass Lang-Hoa Lac Highway (KM27+000) Sidewalk for Underpass

3-20 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

(1) Construction of Internal and Zonal Roads (Phase-1)

This is a project to construct internal and zonal roads planned in the HHTP for Phase-1 as shown in Figure 3.4-1. It should be noted that, from a transportation point of view, roads should be constructed to form a continuous network regardless of the areas to be developed under Phase-1 as long as the land is available. Thus, the project covers construction of internal roads; that is, all of Type I roads (4.2 kilometers in length) and part of Type II roads (7.0 kilometers). It also covers zonal roads that have been planned as Type III roads (8.0 kilometers). In addition, the existing 50-meter wide main road (i.e., Road A in Figure 3.2-1) needs to be upgraded from four lanes to six lanes, and the existing 26-meter wide road on Road C (south of the roundabout) needs to be upgraded to a 50-meter wide internal road of Type I.

3-21 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

Source: JICA Study Team Figure 3.4-1 HHTP Internal and Zonal Road Development Plan (Phase-1)

3-22 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

(2) Construction of Internal and Zonal Roads (Phase-2)

In the Phase-2 project of internal and zonal roads, the remaining roads are to be constructed to complete the HHTP road network. The roads in this project consist of internal roads of Type II (2.0 kilometers in length) and zonal roads of Type III (1.4 kilometers).

(3) Construction of Bridges and Culverts (Phase-1)

This is a project to construct nine PC I-girder bridges (No. 5-11 and 13-14 in Figure 3.4-2), one arch (or extradosed) bridge (No. 15), and two box culverts (of two cells) (No. 17-18) that are located on the internal and zonal roads planned for Phase-1. The bridges and culverts planned in the HHTP are listed in Table 3.4-2 and the locations are shown in Figure 3.4-2. Among others, the bridge crossing Tan Xa Lake (No. 15) is about 100 meters long and the longest of all the bridges. As such, this bridge is planned as a different bridge type such as an arch or extradosed bridge which should match with the landscape of the lake area. Meanwhile, some drainage channels are smaller in scale, and box culverts are planned for these locations (No. 17-18).

Table 3.4-2 List of Bridges and Culverts No. Length Phase Remarks (m) 1 58.15 - Existing bridge 2 40.0 - Existing bridge 3 15.0 - Existing bridge 4 34.1 - Existing bridge 5 60 1 PC I-girder bridge 6 60 1 PC I-girder bridge 7 24 1 PC I-girder bridge 8 24 1 PC I-girder bridge 9 24 1 PC I-girder bridge 10 24 1 PC I-girder bridge 11 24 1 PC I-girder bridge 12 42 2 PC I-girder bridge 13 42 1 PC I-girder bridge 14 80 1 PC I-girder bridge 15 100 1 Arch or extradosed bridge 16 50 - Existing culvert (2 @ 2 x 2 m) 17 22 1 Box culvert (2 @ 2 x 2 m) 18 22 1 Box culvert (2 @ 2 x 2 m) 19 22 2 Box culvert (2 @ 2 x 2 m) Source: JICA Study Team

3-23 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

Source: JICA Study Team Figure 3.4-2 Location of Bridges and Culverts in HHTP

3-24 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

(4) Construction of Bridges and Culverts (Phase-2)

In the Phase-2 project of bridges and culverts, the remaining bridges and culverts are to be constructed in line with the roads to be constructed in Phase-2. In fact, construction of one bridge (No. 12) and one box culvert (with two cells) (No. 19) is included in this project.

(5) Construction of a Grade Separation (Overpass)

This is a project as part of the HHTP internal road infrastructure and aims at constructing a grade separation with an overpass and continuing on-ramp from the HHTP to the direction of Hanoi. The location is around KM28+971 post on Lang-Hoa Lac Highway, namely, in front of the HHTP main gate. Though the structure crossing Lang-Hoa Lac Highway is tentatively planned as an overpass, further study is necessary for determining the structure including the scope of the project (i.e., whether it is a simple grade separation or a full-scale interchange). Detailed position of the main gate and landscape design should also be studied.

(6) Construction of an Interchange (Underpass)

This is a project to construct an interchange with an underpass as part of the HHTP internal road infrastructure. The location is around KM27+000 post on Lang-Hoa Lac Highway, connecting the HHTP eastern sub-gate. Though the structure crossing Lang- Hoa Lac Highway is tentatively planned as an underpass and the design of Lang-Hoa Lac Highway will need to be changed to a bridge structure, further study is necessary for determining the structure as well as the interchange type.

3.5 Technical Studies for Phase-1 Development

3.5.1 Project Description

Phase-1 development includes construction of internal and zonal roads as well as bridges/culverts and interchanges/grade separations that are planned for Phase-1. As shown in the plan (Figure 3.5-1), the roads to be constructed for Phase-1 should not be limited to the Phase-1 land use zones but should be extended to form a continuous network of transportation and other infrastructure. As a result, total length of the roads to be constructed is 19.2 kilometers, consisting of 4.2 kilometers of Type I roads, 7.0 kilometers of Type II roads, and 8.0 kilometers of Type III roads. The topographical map and the roads with height at major intersections are presented in Figure 3.5-2. The design speeds have been set at 50 km/h for internal roads (i.e., Types I and II) and at 40 km/h for zonal roads (i.e., Type III).

With respect to the underground space for utilities, they should be installed under the sidewalks and buffer zones in order to avoid obstruction to the vehicular traffic in case of maintenance or repair works. Furthermore, utility pipes/ditches/cables should be installed keeping the minimum separation distance from each other as stipulated in the Vietnamese construction standards (Table 3.5-1). Assuming the maximum size of each

3-25 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I utility, typical cross-sectional positions of utilities for Type I (two cases), Type II (two cases), and Type III (one case) roads are presented in Figures 3.5-3, 3.5-4, and 3.5-5, respectively. It should also be noted that the minimum face-to-face distance has been kept as 0.3 meters for digging works.

Table 3.5-1 Minimum Separation Distance of Utility Lines [Unit: m] Electrical cable Communication Utilities Water supply Drainage < 35kV cable Horizontal distance

Water supply 0.7 1.5 1.0 0.5

Drainage 1.5 0.4 0.5 0.5 Electrical cable 1.0 1.0 0.1 0.5 < 35kV Communication 0.5 0.5 0.5 0.5 cable Vertical distance

Water supply - 0.1 0.5 -

Drainage 0.1 - 0.1 0.1 Electrical cable 0.5 1.0 1.25 0.3 < 35kV Communication 0.2 - 0.5 0.5 cable Source: Vietnamese Construction Code

In Phase-1, nine PC I-girder bridges (No.5-11 and 13-14 in Figure 3.5-1), one arch (or extradosed) bridge (No. 15), and two box culverts (of two cells) (No. 17-18) are to be constructed. The arch (or extradosed) bridge which is 100 meters long and crosses Tan Xa Lake (No. 15) should become one of the symbolic structures for the HHTP. It should also be noted that, for all the planned bridges, utility pipes are to be attached to the structure.

As for interchanges/grade separations, they are included in the Phase-1 development though further study is necessary to determine the shape and structure. While the HHTP main gate and its gateway road are planned to be connected at grade with the frontage road of Lang-Hoa Lac Highway (KM28+971), an overpass and continuing on- ramp should be necessary for traffic from the main gate to the direction of Hanoi. Meanwhile, an interchange is planned at around KM27+000 post on Lang-Hoa Lac Highway, connecting the HHTP eastern sub-gate. The crossing road is tentatively planned as an underpass because Lang-Hoa Lac Highway will be about five meters higher than the crossing road level around this location. The design of Lang-Hoa Lac Highway will also need to be changed to a bridge structure. The subsequent section discusses types of the interchange that may be appropriate for this location.

3-26 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

c ・

Software Park

High-Tech Industrial Zone

To Dong Mo Lake Vietnam Cultural Village

The Study for Update of Hoa Lac High-tech Park Master Plan

Land Use Plan: Phase 1

Japan International Cooperation Agency (JICA)

Figure 3.5-1 Phase-1 Development Plan for Roads and Land Use

3-27 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

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The Study for Update of Hoa Lac High-tech Park Master Plan

Land Use Plan: Phase 1

Japan International Cooperation Agency (JICA)

Figure 3.5-2 Phase-1 Development for Roads on the Topographical Map

3-28 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

[Type I]

Type I-1

Banking soil for Separator

3% 2% 2% 2% 2% 3%

1750 2500 1000 3000 700 2400 1400 1400 2400 700 1500 1500 1000 2500 1750

8250 4500 11000 1250 1250 11000 4500 8250

R.O.W = 50000

Type I-2

Banking soil for Separator

3% 2% 2% 2% 2% 3%

1750 1000 1500 1000 3000 700 2400 1400 1400 2400 700 1500 1500 1000 1500 1000 1750

8250 4500 11000 1250 1250 11000 4500 8250

R.O.W = 50000

Source: JICA Study Team Figure 3.5-3 Typical Cross Section with Utilities: Type I Road

3-29 The Study for Update the Hoa Lac High-Tech Park Master Plan Final Repot, Supporting Report, Volume I

[Type II]

Type II-1

Banking soil for Separator

3% 1.5% 2% 2% 1.5% 3%

700 900 1000 900 700 2400 1400 1400 2400 700600700 1000 1200

3500 4500 7500 1000 1000 7500 4500 3500

R.O.W=33000

Type II-2

Banking soil for Separator

3% 1.5% 2% 2% 1.5% 3%

500 700 1000 1300 700 2400 1400 1400 2400 700600700 1000 700 500

3500 4500 7500 1000 1000 7500 4500 3500

R.O.W=33000

Source: JICA Study Team Figure 3.5-4 Typical Cross Section with Utilities: Type II Road

[Type III]

Type III

3% 1.5% 2% 2% 1.5% 3%

500 700 1000 1300 2200 1300 1300 2200 600 700 1000 700 500

3500 3500 7500 7500 3500 3500

R.O.W=29000

Source: JICA Study Team Figure 3.5-5 Typical Cross Section with Utilities: Type III Road

3-30