Rail service, too, is subject to frequent strikes.

The period was also marked by frequent strikes, involving school and college staff, pupils and students.

Work sites were plagued with frequent strikes and occasional riots (including several fatalities) during this period.

Many people worry that the country's frequent strikes could cost Paris its chance to be the host.

But after 12 months of frequent commerical strikes, hardly anyone here notices them anymore.

This is due in large part to the frequent strikes.

The carrier ran into big problems early in the last decade and became notorious for poor service and frequent strikes by its 13 unions.

This resulted in frequent strikes by the student body.

The 1890s and early 1900s were marked by frequent strikes throughout Georgia.

Add to that the local industry's frequent strikes - four, so far this year - and the investment climate in Ecuador becomes bleak.