The phrase "highway system" refers to a network of roads, usually large and important ones, that connect different cities, towns, and regions together. Full definition
This will require building a liquid CO2 infrastructure comparable to the national highway system as well as assessing which coal - burning technologies work best with which carbon capture technologies. (scientificamerican.com)
It will be, he said, «the single largest new investment in our national infrastructure since the creation of the federal highway system in the 1950s». (treehugger.com)
The trucking industry is vital for our economy, delivering goods from manufacturers to our consumers on our extensive network of highway systems. (taborlawfirm.com)