The CATT Lab collects information from many sources, including roadside devices, GPS (global positioning system) equipment and wireless phones.

　　About 60 students and 30 software developers observe traffic flow and manage the computer servers at all times.They also work to develop software and applications that can help traffic run smoother and safer, Some of them turn the information gathered into so－called “visualizations”．These visual representations help emergency workers better understand what is happening.

　　The center shares its findings with firefighters, police, transportation departments and the military.They also share information with universities and transportation companies.The technology company Google uses the data for its traffic－related websites.Michael Pack says, the information is then shared with anyone who wants to help traffic run more smoothly.

　　Mr.Pack says the goal is to help develop an intelligent system of road signals that will communicate with each other and with vehicles on the road.

　　语篇解读：本文是一篇说明文。介绍了马克里兰大学先进交通技术中心(CATT)的科学家和学生们使用模拟技术帮助政府和私营企业控制和应对不断变化的交通状况。

　　32．The second paragraph is written to ________.

　　A．attract more people to look through Forbes.com.

　　B．tell readers what Forbes.com says on its website

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