The phrase "a network of roadways" is correct and usable in written English.
You can use it when describing an interconnected system of roads or highways in a specific area or region.
Example: "The city has developed a comprehensive plan to improve a network of roadways to enhance traffic flow and reduce congestion."
Alternatives: "a system of roads" or "an interconnected road system".
A network of roadways extends like tendrils from this base, weaving along the edge of the river and tying the complex to the old city.
The NHS is a network of roadways important to the country's economy, defense, and mobility.
The NHS is a network of roadways important to the nation's economy, defense, and mobility.
I-8 is part of the National Highway System, a network of roadways important to the country's economy, defense, and mobility.
The entire route is in the National Highway System, a network of roadways important to the country's economy, defense, and mobility.
The entirety of I-69 is listed on the National Highway System, which is a network of roadways important to the country's economy, defense, and mobility.
Below them will be a network of ramps, roadways, loading docks and parking spaces.
This fall, the Romanian Ministry of Transport and Infrastructure released a master plan outlining a network of new roadways to be built over the next 15 years.
He responded by recommending the preservation of Manila's old walled Spanish city, and in both cities he utilized familiar City Beautiful components: a system of parks, a network of diagonal roadways for traffic efficiency, and a civic centre complex, formally arranged as the heart of the community.
His brainchild is a network of electrified roadways that would allow drivers of battery-electric vehicles to travel at up to 120mph (200kph), with no need to stop and recharge.
Additionally, the study area includes the city of Houston, a large metropolitan area covered by a dense network of roadways.
