Why are the means of transportation and communication called the lifelines of a nation and its economy?

The means of transportation and communication are called the lifelines of a nation and its economy because:

1. The pace of a country's development depends not only on its capacity to produce goods and services but also on their seamless movement across the country. Therefore, efficient means of transport are prerequisites for national development.
2. A dense and efficient network of transport and communication is a prerequisite for local, national and global trade of today.
3. Transportation and communication networks connect different regions and communities within a country fostering social cohesion and economic integration.
4. It enhances the country's disaster response, healthcare access, education and employment opportunities improving overall quality of life of the nation's population.
5. It facilitates tourism which helps in promoting national integration, provides support to local handicrafts and cultural pursuits and brings in foreign exchange.