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Rural road connectivity and local economic Activity: Evidence from Sri Lanka’s iRoad program

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  • Chen, Liming
  • Lu, Yang
  • Nanayakkara, Aruna

Abstract

A large portion of the world's rural population has limited access to paved roads, which is widely believed to constrain rural economic growth opportunities. Using a panel of nighttime lights and road placement data from the Integrated Road Investment Program (iRoad), a large-scale rural road development program in Sri Lanka, this study examines the relationship between rural road connectivity and local nighttime luminosity. The program was found to result in better and more consistent rural road conditions. Rural areas with improved connectivity after two years show higher local nighttime luminosity, a proxy for economic activity, compared to areas without connectivity. These gains hold even for indirectly targeted rural areas where the iRoad passes through. The gains vary spatially, which are most pronounced in areas at a moderate distance to socioeconomic centers and with more adequate complementary infrastructure provisions. These findings support the notion that improving rural connectivity can ease development constraints, increase resilience in managing negative economic shocks caused by the COVID-19 pandemic, and contribute to post-pandemic economic recovery. The findings also lend to the idea that targeted placements based on the beneficiary's location and complementary infrastructure (e.g., educational and medical facilities) can enhance the effectiveness of rural road investments. An intensive margin analysis suggests that post-construction maintenance is effective in bringing about sustained impact.

Suggested Citation

  • Chen, Liming & Lu, Yang & Nanayakkara, Aruna, 2023. "Rural road connectivity and local economic Activity: Evidence from Sri Lanka’s iRoad program," Transport Policy, Elsevier, vol. 144(C), pages 49-64.
    • Handle: RePEc:eee:trapol:v:144:y:2023:i:c:p:49-64
    DOI: 10.1016/j.tranpol.2023.09.022
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    References listed on IDEAS

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    More about this item

    Keywords

    Roads; Rural infrastructure; Nighttime lights; Sri Lanka;
    All these keywords.

    JEL classification:

    • O18 - Economic Development, Innovation, Technological Change, and Growth - - Economic Development - - - Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure
    • R12 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General Regional Economics - - - Size and Spatial Distributions of Regional Economic Activity; Interregional Trade (economic geography)
    • R42 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Government and Private Investment Analysis; Road Maintenance; Transportation Planning
    • R58 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Regional Government Analysis - - - Regional Development Planning and Policy

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