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Lesson
Due diligence for future projects should include developing a thorough understanding of the institutional setup and internal review and approval procedures as well as mapping out effective mitigation measures to minimize delays. This project's implementation was affected by cumbersome approval mechanisms at the executing agency (EA) headquarters for contract variations and extensions. Frequent interventions by ADB and EA top management were required to expedite decision-making.

Project Number: 48402-001, 48402-002
Project Name: National Motorway M–4 Gojra–Shorkot Section Project and National Motorway M–4 Gojra–Shorkot–Khanewal Section Project - Additional Financing
Report Date:
Lesson
Timely and appropriate changes in scope and reallocation of loan and grant proceeds responding to actual project needs emerging from implementation can help utilize available loan and grant resources in a more targeted and efficient manner to facilitate more activities and deliver more outputs. For example, responding to the government’s request relating to E35 contributed directly to developing an efficient and safer transport corridor between Islamabad, Faisalabad, and Multan for more connectivity between the various parts of the country.

Project Number: 48402-001, 48402-002
Project Name: National Motorway M–4 Gojra–Shorkot Section Project and National Motorway M–4 Gojra–Shorkot–Khanewal Section Project - Additional Financing
Report Date:
Lesson
The absence of a financial cost-benefit evaluation for the toll revenue-generating motorway is a methodological weakness. The project completion report (PCR) did not explain why it did not conduct a financial cost-benefit evaluation for the toll revenue-generating motorway. This validation notes that the RRP too did not conduct such evaluation.

Project Number: 48402-001, 48402-002
Project Name: National Motorway M–4 Gojra–Shorkot Section Project and National Motorway M–4 Gojra–Shorkot–Khanewal Section Project - Additional Financing
Report Date:
Lesson
Inadequate consideration of climatic constraints,working seasons in the project sites, difficult terrain, and availability of experienced local labor and construction materials can cause construction delays with implications on project implementation periods and costs .

Project Number: 37143-033
Project Name: North Eastern States Roads Investment Program - Project 2 and Multitranche Financing Facility
Report Date:
Lesson
Inaccurate estimation of quantities in the detailed project reports (DPR), required for project processing in India, can raise project costs at the same time push back construction periods. There was a huge difference between actual quantity requirements based on site-specific conditions and those indicated in this project's DPRs. Because of insufficient estimations in the bill of quantities, contractors had to put a huge claim for the revision of rates and work quantity. Given this, care must be taken in preparing the DPR and estimating quantities.

Project Number: 37143-033
Project Name: North Eastern States Roads Investment Program - Project 2 and Multitranche Financing Facility
Report Date:
Lesson
Wide time gaps between the finalization of construction cost estimate, initiation of the bidding process, and awarding of contracts should be avoided as these could lead to time and cost overruns. There were significant time gaps of 4–5 years between the finalization of the DPRs, including cost estimates and the completion of the bidding process. Besides causing startup delays, this also led to higher contract costs in comparison to the engineering estimates.

Project Number: 37143-033
Project Name: North Eastern States Roads Investment Program - Project 2 and Multitranche Financing Facility
Report Date:
Lesson
issues, unforeseen project features, and road safety and traffic issues

Project Number: 46040-003
Project Name: Yunnan Pu'er Regional Integrated Road Network Development Project
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Lesson
changes in the pavement composition to address climate change and overloading, constructability

Project Number: 46040-003
Project Name: Yunnan Pu'er Regional Integrated Road Network Development Project
Report Date:
Lesson
Implementing urban infrastructure and providing universal municipal services within growing towns face complex ground-level challenges hence requiring more time for implementation.

Project Number: 38254-013, 38254-063
Project Name: North Karnataka Urban Sector Investment Program (Tranche 4 and Multitranche Financing Facility)
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Lesson
Adequate project readiness and accurate designs are critical for large infrastructure projects. Lack of these could cause delays, i.e., this project encountered a delay of over 2 years in finalizing the detailed design for the major civil works contracts and delays in procurement. Furthermore, inclusion of additional scope of works and delays in land acquisition and resettlement plans, and COVID-19 impacts hindered timely implementation.

Project Number: 40540-014, 40540-017
Project Name: South Asia Subregional Economic Cooperation Road Connectivity Project
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Lesson
A geo-fabric reinforced seal could be replicated to provide more robust waterproofing and as a strain-alleviating membrane for treating road surface cracks. The geo-fabric reinforced seal installed for a 500 m length of the project road on a pilot basis proved to be an effective spray sealing technique for treating badly cracked and distressed pavements, particularly where crack movements are slow.

Project Number: 40540-014, 40540-017
Project Name: South Asia Subregional Economic Cooperation Road Connectivity Project
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Lesson
It is critical that the risk assessment and management plan of the project preparatory technical assistance in the tourism sector incorporate measures to be taken in case of future pandemics. The COVID-19 pandemic led to delays in realizing project tourism benefits. Nevertheless, the ensuing pent-up demand from domestic and foreign tourists seems likely to lead to increases in future incremental visitor numbers, visitor days, and visitor expenditure from each of the subprojects. These increases could contribute to the financial sustainability of the subprojects.

Project Number: 46293-005
Project Name: Greater Mekong Subregion Tourism Infrastructure for Inclusive Growth Project
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Lesson
Land acquisition procedures, processes, consultations, and reporting are complex in Viet Nam, not least because of the number of agencies involved. Therefore, more time, energy, and expertise need to be allocated to project land clearance and subsequent resettlement compensation.

Project Number: 46293-005
Project Name: Greater Mekong Subregion Tourism Infrastructure for Inclusive Growth Project
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Lesson
The supporting technical assistance was assessed successful but was let down by the lack of institutional ownership, which can often be the case. For ADB’s future projects, it is important to focus more attention on the design and implementation of such assistance by closely following the consultants’ outputs and ensuring that the government is fully aware of their results

Project Number: 43309-013
Project Name: Provincial Roads Improvement Project
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Lesson
The concept of level 2 design introduced under the Road Project Preparatory Facility is an effective strategy, particularly when there is no guarantee that the designed roads will be constructed immediately after preparation. This strategy minimizes the risk of outdated designs while saving time and other resources.

Project Number: 42254-013
Project Name: Northern Road Connectivity Project
Report Date: