Nearly half of some 500 companies based in central Tokyo that were polled in a recent survey have yet to make plans to circumvent the traffic congestion expected during the 2020 Olympics and Paralympics.

Altogether, 44.3 percent of the 475 respondents to the survey conducted in March by the Tokyo Chamber of Commerce and Industry said they have not come up with a strategy for the busy period at the time of the games, although they recognize the need to do so.

Some respondents to the survey, already facing labor shortages, said they are occupied with more pressing challenges such as the government's planned consumption tax hike in October.