China,     1     takes pride in the Four Great Inventions in ancient times, has once again shown its ability to change the world with its “four new great inventions”: high-speed rail, electronic payment, shared bikes and online shopping.

Recently, the “four new great inventions”     2     (improve) the quality of people’s lives. People can buy what they want simply with a tap at the cell phone at home. They are also very happy that high-speed trains and shared bikes have shortened     3     (they) journeys and made public transport more attractive.

It is increasingly clear that China is leading in many new ways. A growing number of foreign     4     (company) hope to promote the development in their home country like China.

6 . Self-driving vehicles will rely on cameras，sensors and artificial intelligence (Al) to recognize and respond to road and traffic conditions.But sensing is the most effective for objects and movement in the neighborhood of the vehicle.Not everything important in a car’s environment will be caught by the vehicle’s camera.Another vehicle approaching at high speed on a collision(碰撞)track might not be visible until it’s too late.This is why vehicle-to-vehicle communication is undergoing rapid development.Our researches show that cars will need to be able to chat and operate on the road，although the technical challenges are considerable.

Applications for vehicle-to-vehicle communication range from vehicles driving together in a row，to safety messages about nearby emergency vehicles.Vehicles could alert each other to avoid collisions or share notices about passers-by and bicycles.

From as far as several hundred meters away.vehicles could exchange messages with one another or receive information from roadside units (RSUs) about nearby incidents or dangerous road conditions through 4 G network.A high level of Al seems required for such vehicles，not only to self-drive from A to B，but also to react intelligently to messages received.Vehicles will need to plan，reason，strategize and adapt in the light of information received in real time and to carry out cooperative behaviors.For example，a group of autonomous vehicles might avoid a route together because of potential risks，or a vehicle could decide to drop someone of earlier due to messages received，a foreseen crowding ahead.

Further applications of vehicle-to-vehicle communication are still being researched，including how to perform cooperative behavior.

Is traffic a big problem where you live? Increased cycling may be the answer. Where are the best places to live and cycle? A new report lists the best bike—friendly cities around the world.

Top of the list is Amsterdam, the bike capital of the world. An incredible 40% of all traffic movements are by bicycle. There’s an extensive network of safe, fast and comfortable cycle routes. Copenhagen, the city of bikes, is a city where 32% of workers cycle to work because it’s fast and easy. Berlin is another European city that’s great for cycling. The city has about 80 kilometres of bike lanes, and 50kilometres of pavement paths. Cycling accounts for 12% of total street traffic.

Barcelona has been praised for its cycle service “Bicing”. It’s a bicycle service that allows users to take bicycles from any of the 100 stations spread around the city. Later, they can leave them at any other bike station inside the urban area of the city. The city has created a “green ring” that surrounds the city area with a bike path. There are 3,250 parking spaces for bikes at street level at present. Barcelona City is also building a new underground car park for bicycles.

The UK has its cycle friendly cities too. Bristol is the birthplace of “Sustrans” the cycle-route charity which was formed 30 years ago. One of their projects was turning an old rail line between Bristol and Bath into a bike route. Other bike friendly cities in the UK include Cambridge and York. Cambridge is an old city but has still managed to build good cycle infrastructure (基础设施), and cyclists are considered at every stage of any new developments.

Bicycle is a most popular means of transportation in China. Nowadays, riding a bicycle is also a good way to support low-carbon living. Beijing can be one of the best bike-friendly cities in China. There are many riding routes in Beijing for outdoor-lovers to explore. Cyclists can get close enough to experience the history and culture of Beijing, including the Forbidden City, Drum Tower, the Water Cube etc.

10 . The Intelligent Transport team at Newcastle University have turned an electric car into a mobile laboratory named “Drive LAB” in order to understand the challenges faced by older drivers and to discover where the key stress points are.

Research shows that giving up driving is one of the key reasons for a fall in health and well-being among older people, leading to them becoming more isolated and inactive.

Led by Professor Phil Blythe, the Newcastle team are developing in-vehicle technologies for older drivers which they hope could help them to continue driving into later life.

These include custom-made navigation (导航) tools, night vision systems and intelligent speed adaptations. Phil Blythe explains: “For many older people, particularly those living alone or in the country driving is important for keeping their independence, giving them the freedom to get out and about without having to rely on others.”

“But we all have to accept that as we get older our reactions slow down and this often results in people avoiding any potentially challenging driving conditions and losing confidence in their driving skills. The result is that people stop driving before they really need to.”

Dr Amy Guo, the leading researcher on the older driver study, explains, “The Drive LAB is helping us to understand what the key stress points and difficulties are for older drivers and how we might use technology to solve these problems.”

“For example, most of us would expect older drivers always go slower than everyone else but surprisingly, we found that in 30mph zones they struggled to keep at a constant speed and so were more likely to break the speed limit and be at risk of getting fined. We’re looking at the benefits of systems which control their speed as a way of preventing that.”

“We hope that our work will help with technological solutions to ensure that older drivers stay safer behind the wheel.”