Prime Minister Junichiro Koizumi has ordered the government to use revenue from some auto-related taxes for purposes other than road-related projects, infrastructure minister Kazuo Kitagawa said Tuesday.

Koizumi also said there should be no cuts in these taxes, which have been kept at levels up to 2.5 times their original rates, Kitagawa said at a news conference.

The use of revenue from six types of taxes has been limited to funding construction of roads and road-related facilities, and road maintenance.