The maintenance of most roads takes more time and money than budgeted, but the maintenance of Beijing-Tianjin-Tangzhou Expressway and similar roads in the summer and night of the previous year did not cost more time or money than budgeted. Therefore, in summer, night maintenance Major roads may save time and money.
The statement 'Road workers who are willing to work at night are easier to find jobs because most people prefer to work during the day' best supports the above conclusions.