Though there was a regular dispatch system for all taxis before, there was nothing sepecifically for wheelchair-accessible vehicles.

BBC: Improvements in handicap travel

The event was noted on a field interview card and in the computer-aided dispatch system.

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Mayor Michael Mr. Bloomberg was adamant Tuesday that glitches in the dispatch system didn't leave New Yorkers in the lurch.

WSJ: New York City's 911 System Swamped Again

Last month, New York City launched a new dispatch system for wheelchair-accessible taxis, making it easier for handicapped visitors and locals to get around the city.

BBC: Improvements in handicap travel

The problems this week involve one piece of the giant ongoing overhaul, the new dispatch computer system, rolled out Wednesday on the first hot day of the year, when emergency calls usually spike.

WSJ: Glitches in new NYC 911 system