"We want to protect against people leaving the train in uncontrolled situations such as extensive delays and exposing themselves to accidents," he said.

The result was that many customers suffered extensive delays in trying to execute trades, while others were not able to trade at all.

And the much larger Army contingent in Iraq has faced even more extensive delays.

The contrast to the experience of the mid-1980's, particularly to 1985, when computer problems caused extensive and costly delays, is especially sharp.

The complex has been subject to construction problems and the schedule has had extensive delays.

Those reports have brought whole subway lines to a halt during the rush hours, causing extensive delays.

Jan. 9: Close to full service, but with extensive delays.

Serbian leaders agreed but, as is frequently the case, local commanders used extensive delays.

But management problems, aggravated by remodeling problems, led to extensive delays.

And the power failed at the center on April 6, also causing extensive delays.