4 . A vast majority of people usually argue that cycling can make a significant contribution to our world. In reality, there is a gap between desired and actual numbers. In Germany, for instance, only 20% of the everyday short-distance trips are covered by bicycle. When enquiring about the causes, researchers found one point repeatedly tops the list: the perceived or potential risk on the bike routes used. Increasing the share of cycling trips thus depends crucially on well-developed bike paths.

However, designing efficient bike path networks is a complex task that involves balancing a variety of limitations while meeting overall demand. In addition, many districts are confronted with a shortage of funds available for improving the infrastructure. Researchers propose a new approach to generating efficient bike path networks. This considers demand distribution and the route option of cyclists based on preferences for secure outings. Typically, minimizing the travel distance is far from the solely goal. Aspects such as attractiveness of a route are also taken into account.

7 . Henry Raeburn (1756-1823)

The Exhibition

This exhibition of some sixty masterpieces celebrating the life and work of Scotland’s best loved painter, Sir Henry Raeburn, comes to London. Selected from collections throughout the world, it is the first major exhibition of his work to be held in over forty years.

Lecture Series

Scottish National Portrait (肖像画) Gallery presents a series of lectures for the general public. They are held in the Lecture Room. Admission to lectures is free.

Exhibition Times

Monday-Saturday 10.00-17.45             Sunday 12.00-17.45

Last admission to the exhibition: 17.15. There is no re-admission.

Closed: 24-26 December and 1 January.

Admission

£4. Children under 12 years accompanied by an adult are admitted free.

Schools and Colleges

A special low entrance charge of £2 per person is available to all in full-time education, up to and including those at first degree level, in organised groups with teachers.

How much would a couple with two children under 12 pay for admission?

9 . With the young unable to afford to leave home and the old at risk of isolation(孤独), more families are choosing to live together.

The doorway to peace and quiet, for Nick Bright at least, leads straight to his mother-in-law, she lives on the ground floor, while he lives upstairs with his wife and their two daughters.

Four years ago they all moved into a three-storey Victorian house in Bristol - one of a growing number of multigenerational families in the UK living together under the same roof. They share a front door and a washing machine, but Rita Whitehead has her own kitchen, bathroom, bedroom and living room on the ground floor.

“We floated the idea to my mum of sharing at a house,” says Kathryn Whitehead. Rita cuts in: “We spoke more with Nick because I think it’s a big thing for Nick to live with his mother-in-law.”

And what does Nick think? “From my standpoint, it all seems to work very well. Would I recommend it? Yes, I think I would.”

It’s hard to tell exactly how many people agree with him, but research indicates that the numbers have been rising for some time. Official reports suggest that the number of households with three generations living together had risen from 325,000 in 2001to 419,000 in 2013.

Other varieties of multigenerational family are more common. Some people live with their elderly parents; many more adult children are returning to the family home, if they ever left. It is said that about 20% of 25-34-year-olds live with their parents, compared with 16% in 1991.The total number of all multigenerational households in Britain is thought to be about 1.8 million.

Stories like that are more common in parts of the world where multigenerational living is more firmly rooted. In India, particularly outside cities, young women are expected to move in with their husband’s family when they get married.

10 . Commuting to and from work can be a nightmare. Cars advance slowly in stop and go traffic, crawling from one traffic jam at stoplights to the next. At peak rush hour especially, there is no chance of sailing through a series of green lights. Now, thanks to artificial intelligence, German researchers have found a way to reduce time spent at the crossroads.

Called the KI4LSA project and funded by the Ministry of Transport and Digital Infrastructure, the innovation is being tested. Scientists first studied algorithms taken from a busy intersection to learn about traffic patterns and where improvements were most needed. Then, the technology, using high-resolution cameras and radar sensors, more precisely captured the actual traffic situation and detected the average speed of the cars and their waiting times. Finally, the AI uses deep enhanced learning algorithms to calculate the best switching behaviour for the traffic lights and determine the best phase sequence to shorten waiting times at the crossroads.

The results are encouraging when it is being tried out at a busy intersection in Lemgo, Germany. The intelligent lights are said to improve traffic flow by 10 to 15 percent, which results in money saved; the EU estimates that traffic jams create economic damage that adds up to 100 billion euros a year. Aside from reducing commuting time, these traffic lights will reduce noise and CO2 emissions from cars waiting at the crossroads.

Another exciting development in this research is the K14PED project, which studies pedestrians crossing the crossroads. Using AI as well as a 3D points cloud, researchers can identify how many people are waiting at a pedestrian crossing and whether some of the disabled or elder people will need extra time to cross the street. Such a needs-based system could reduce pedestrian waiting time by 30 percent, which could then decrease jaywalking (乱穿马路) by 25 percent.

Researchers are optimistic that it will be adopted by many countries after the tests in the German towns of Lemgo and Bielefeld. This technology is exciting news for pedestrians and drivers alike. It encourages safety, protects the environment, and may even give you more time to enjoy your morning coffee before heading off to work!