The phrase "expansion of roads" is correct and usable in written English.
You can use this phrase when you want to describe something that involves the construction of new roads, or the widening of existing roads. For example: "The local government decided to invest in an expansion of roads to help alleviate traffic congestion."
The expansion of roads to rural areas created new markets.
State officials say the agreement, which has the legally enforceable status of a contract, outlines a modest expansion of roads and interchanges close to the reservoir.
Saudi Arabia's shura council has recommended an expansion of roads leading to the site of a ritual in the annual hajj pilgrimage where more than 2,000 pilgrims died in a stampede last year.
In fact, what does appear irrational is that when more than 50 percent of road users travel by bus, 98 percent of Jawaharlal Nehru National Urban Renewal Mission grants from the Ministry of Urban Development have been spent on the expansion of roads, construction of flyovers and parking projects, in which the primary targeted beneficiaries are cars.
But the Gunnison sage grouse's situation is far more dire, as its tiny populations face continued pressure from conversion of sagebrush to irrigated agriculture and livestock grazing, residential development, expansion of roads and power facilities, invasive plants like cheatgrass and human-altered fire patterns.
The expansion of roads and the development of new road infrastructures have increased in recent years, linked to the population growing in large cities.
They envisage an expansion of road-building in the forest, as well as some big hydroelectric projects.
The EU did run up backlog of €26bn (£20bn) in bills, as a result of a rapid expansion of road-building and infrastructure projects in central and eastern Europe.
The 1930s were years of considerable prosperity for the south and the Midlands, as new manufacturing industries emerged and an expansion of road and suburban rail networks facilitated a housing boom.
Jones is by far the most radical, proposing a large expansion of road pricing to generate funds to keep fare rises below inflation, and ensure that public transport travel is always cheaper than going by car.
The decline in railway use favours the expansion of road mobility and its infrastructures.
