 The Committee were also empowered to make inquiries, and issued a number of reports into such matters as cross-river transport, congestion and car-parking.Section 7 of the Act gave the Minister the power to make an order declaring any thoroughfare in the City of London or the Metropolitan Police District a "restricted street", in which no additional omnibuses other than those already operating there could "ply for hire".The first such order was made on 12 January 1925, but with retrospective effect to the beginning of the year, and listed most of the streets in central London.