21.   Competing airlines are seeking to maximize profits by bunching flights together at peak periods of travel during the day, he said.

22.   Construction industry demand, brisk during the first quarter, is expected to remain strong as the peak period for starting work on building projects continues through May.

23.   Construction industry demand, brisk during the first quarter, is slowing as the peak period of new building ends in May.

24.   Demand could slow in the coming months as the peak period of new home building ends at the beginning of the summer.

25.   Demand for copper is steady, although buying of copper products could decline as the peak period of new U.S. construction activity ends next month.

26.   During peak periods, many retailers hire students from nearby Southwest Texas State University as extra interpreters.

27.   During peak periods, users would specify at the beginning of their message how much they were willing to pay for priority access to the network.

28.   Eurotunnel had a record month in November, better than its August peak period.

29.   Even more lead time is required for peak periods, like the school breaks near Easter and Christmas.

30.   For electricity markets to work, there must be a significant excess of supply even at peak periods, he said.