The phrase "a system of highways" is correct and usable in written English.
It can be used when discussing infrastructure, transportation networks, or urban planning.
Example: "The government is investing in a system of highways to improve connectivity between major cities."
Alternatives: "a network of roads" or "a highway infrastructure".
After World War II, we connected our states with a system of highways.
It has, however, been overshadowed by a system of highways and all-weather roads built with the support of the United States beginning in the 1950s.
How disastrously such competition will affect the railway's traffic and revenues is shown by its own experience since the state commenced, with the aid of the federal government, a system of highways paralleling the lines of the railway.
Tony Khawam, who was born in Syria but now lives in Budd Lake, was inspired by carpets for his busy painting "Interchange," whose title refers to a system of highways.
He imported scores of Chinese artists, craftsmen, and clerks into Japan, adopted the Chinese calendar, created a system of highways, and erected many Buddhist temples, including the Hōryū Temple, built in 607 in Ikaruga, near Nara, which is now considered among the oldest surviving wooden structures in the world.
After World War II, we connected our States with a system of highways.
This point of view was recognized by the Federal Aid Highway Act of 1921, which required each state to designate a system of state highways not to exceed 7 percent of the total highway mileage in each state.
These trajectories therefore form a system of PFR "highways" that provide access to the attainable region's extreme points.
The plan is part of a broader White House strategy to upgrade America's ever-changing Internet infrastructure as one would a system of aging highways or bridges.
A system of national highways that improved on the concept of auto trails was formed in late 1925.
But well before 1956, any number of issues needed settling, including, Swift notes, the question of whether "to build a national system of highways or a system of national highways".
