How can new infrastructure accelerate creation of more and better jobs?

It is widely accepted that investments in infrastructure can lead to direct and indirect jobs, and usually have spillover effects into other economic opportunities. For example, good transport systems and agro-logistics services help move freight from farms to locations where value can be added (like intermediate processing, packaging and sorting of agricultural produce) and ultimately to consumers. However, the anticipated benefits of these investments are not always fully realized, or sometimes they happen much later. How can investments in infrastructure have a multiplier effect in stimulating the economy and, eventually, facilitate job creation?
To maximize their impact, infrastructure projects should explicitly analyze and include complementary investments (e.g., industrial parks or processing facilities) and soft interventions (financial services, ICT, laws and regulations, etc.) needed to unlock the potential of new markets. As part of a broader effort to link investment in rural roads to economic opportunities, the Roads to Jobs study analyzed strategic value chains in the agriculture sector in Rajasthan, India, to better understand the challenges faced by farmers in accessing markets and provided recommendations to address constraints.