Statistics showed that there were 75 applicants with the name Liu Xuemei, and 20 of them had won the lottery, the article said.
More than 1,400 applicants were named Wang Lei, and 26 percent of them had won new car registrations, it said.
Li, from the commission of transport, reiterated the fairness of the lottery system at the news conference on Thursday.
Yu Lingyu, a law professor at Tsinghua University, said: "Using such administrative means to limit car registrations is comparatively fair, but it leads to some problems. Some people's real needs are not met, while some randomly apply but never use the registration rights if they win."
Transportation authorities could consider applicants based on household units, or blacklisting those who win the lottery but abandon their rights, preventing them from applying again for a certain period of time, he said.
Beijing has taken a series of measures to ease heavy traffic in recent years. They include limiting car usage based on license plates, opening more subway lines and encouraging the use of public transportation.
The city is also considering congestion fees, according to a five-year plan (2011-15) released by the transportation authority.
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