PARIS — Air traffic controllers in France have planned three days of strikes beginning Tuesday, to protest a proposal by the European Commission to accelerate the integration of air traffic management systems across the Continent. In addition, their counterparts in several other European countries were expected to take more limited labor action this week.

France’s civil aviation authority made contingency plans over the weekend, asking airlines serving the country’s airports in Paris, Lyon, Nice, Marseille, Toulouse and Bordeaux to reduce their flight schedules by 50 percent from Tuesday morning until late Thursday to ease the burden on those airports, which were expected to face significant disruption.

Unions in more than a half dozen other countries, including Belgium, Hungary, Italy and Portugal, were likely to join in work-to-rule and other more symbolic actions on Wednesday, said Koen Reynaerts, a spokesman for the European Transport Workers’ Federation in Brussels, which represents more than 25,000 workers involved in managing air traffic across the region. Those actions were likely to provoke more limited delays, he said.

The moves are meant to coincide with a speech planned for Tuesday by the European Union’s transportation commissioner, Siim Kallas, in which he was expected to formally announce planned changes to European legislation to speed the transfer of responsibility for certain air traffic management functions to a central body in Brussels and away from the European Union’s 27 member states.