Imagine a vehicle that can pick you up outside your home, drive to the nearest railway line, and change itself into a train. It may sound like a story from “Thomas the Tank Engine,”
With a capacity of 23, the DMV is a diesel-powered (柴油驱动的) bus fitted with a set of retractable (可缩进的) rail wheels
Tokushima government hopes that the DMV buses
A freight train loaded with grain from Kazakhstan arrived in Zhangjiakou on Dec 13. It came after a journey
It was the first freight train from overseas
The government said the train’s arrival signified the
The name of the trains, “Jingzhang”,
As the train network continues to expand, more cities in Hebei, Shijiazhuang, Handan, Langfang and Zhangjiakou
3 . Researchers have proposed a novel method for counting and tracking vehicles on public roads, a development that could improve current traffic systems and help travelers get to their destinations faster.
Using the cameras already installed on campus buses at the Ohio State University, researchers proved that they could automatically and accurately measure counts of vehicles on urban roadways, detect objects in the road and distinguish parked vehicles from those that are moving.
In previous studies, Ohio State researchers found that using these mobile cameras provides much better spatial and temporal (时间的) coverage than relying on often temporarily placed sensors that don’t provide a view of many streets and roads in a city.
“If we collect and process more high-resolution (高清) spatial information about what’s happening on the roads, then planners could better understand changes in demand, effectively improving efficiency in the broader transportation system,” said Keith Redmill, lead author of the study.
“If we can measure traffic in a way that is as good or better than what is conventionally done with fixed sensors, then we will have created something incredibly useful extremely cheaply,” he said. “Our goal is to start building a system that could do this without much manual intervention because if you want to collect this information over lots of potential vehicles and lots of time, it’s worth fully automating that process.”
While still a long way from total implementation (实施), the study suggests the system’s results bear promise for the future of intelligent traffic surveillance. Transportation planners, engineers and operators make vital decisions about the future of our roadways, so when designing transportation systems to work over the next 30 to 50 years, it’s necessary that we give them data that allows them to improve the efficiency of the system and the level of service provided to travelers.
1. How can cameras on buses benefit travelers?A.By shortening their travel time. |
B.By making their schedules tight. |
C.By decreasing their transport cost. |
D.By improving their safety awareness. |
A.They provide more spatial coverage. |
B.They can’t detect objects on the road. |
C.They cover less view of the urban traffic. |
D.They accurately record the flow of traffic. |
A.Operation. | B.Monitoring. | C.Protection. | D.Arrangement. |
A.Transportation automation is on its way |
B.It is time to improve the efficiency of traffic system |
C.Transportation planners use cameras to make policies |
D.Cameras installed on buses can better measure traffic |
A.A gallery. | B.A bookstore. | C.A coffee shop. |
1. What is the man doing?
A.Conducting a survey. | B.Asking for directions. | C.Planning a trip. |
A.Its space. | B.Its Internet. | C.Its speed. |
A.It was too crowded. | B.It broke down halfway. | C.It ran behind schedule. |
A.The information display facilities. |
B.Bigger boards for train times. |
C.More seats on the platforms. |
1. What is the man doing?
A.Introducing the woman to his neighbors. |
B.Giving the woman advice on how to find a flat. |
C.Showing the woman around the neighborhood. |
A.Visit the night market. | B.Jog in the high school. | C.Shop in convenience stores. |
A.To get some information. | B.To find a map of the city. | C.To borrow some books. |
A.To a restaurant. | B.To a bookstore. | C.To a park. |
1. What happened to the woman’s flight?
A.It failed to take off on time. |
B.It was called off without notice. |
C.It arrived about two hours earlier. |
A.In a restaurant. | B.On a plane. | C.At the airport. |
A.Asking for information. | B.Giving directions. | C.Waiting for a bus. |
A.Kennedy. | B.London. | C.New York. |