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Andrew Hanson from Better Streets West Dulwich, whose partner Anna Goodman, the academic producing favourable research on LTNs, was caught on camera removing a LTN opposition poster from a shop said "it's much easier to talk to your neighbours when there aren't 200 cars an hour going past your...

13,277 次观看 • 1 年前 •via X (Twitter)

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Look at how American children live! I filmed this on my way home from New York City after attending the World Falun Dafa Day parade a few days ago. I happened to get stuck behind a school bus, which kept stopping and delayed me quite a bit — but it also gave me a chance to closely observe the happy lives of these children. As you can see, the school bus drops each child off right at their home. Sometimes two houses are only five or ten meters apart, yet the bus still stops separately for each family. It doesn’t try to save time by dropping the children somewhere in between and making them walk home on their own. Around the 10-second mark in the video, you can see a small child get off the bus and cross the street to go home. That’s why in the United States, whenever a school bus stops, not only must all the cars behind it stop, but even the cars coming from the opposite direction must stop as well — all to ensure children can cross the road safely. I filmed both of these clips from inside my car. I was quite amazed that day, but I hadn’t had time to share them until now. Today I finally wanted to show everyone. This is what a society built for people looks like! And compare American children's lives with those of Chinese children! A follower of my Chinese language account 曾錚 says that a lot of Chinese middle and high-school students are just like prisoners, and their parents are only allowed to visit them at school once a month!

Inconvenient Truths — Jennifer Zeng Reports

17,740 次观看 • 2 个月前

Are you safer with LIDAR, or are you safer with vision? This is a false dichotomy. The more pertinent question today is "do you have something, or do you have nothing?" As you can see from the clips below, vision based systems avoid countless potential collisions every day. The difference between a crash and no crash isn't what sensor suite you chose — it's whether you have any AI on your car at all. Even if we concede that LIDAR may help prevent some additional crashes, we are really debating whether it is 1% of crashes or 0.00001% of crashes. Not all crashes are super complex and require lasers to detect. Most are simple, routine, and can easily be prevented by today's vision based AI. In fact, evidence is mounting that computer vision based systems can actually outperform more traditional approaches to self-driving. Why? Because the low cost of cameras enables you to create a much larger, more varied, and more diverse dataset. If you want to have expensive custom cars that's fine, but you're going to get fewer vehicles for the same budget. Seeing what's in front of you now is actually less important than predicting what's going to happen next — and the large scale datasets used to train pure vision systems are the best for predicting what's next. Counter-intuitively, the simpler and lower cost sensor actually has properties that make it better suited for training advanced AI. Computer vision based self-driving is often framed by LIDAR proponents as "cheaping out" on the sensor suite to save money. But it's not about being cheap, it's about bringing the technology to everyone. 1.2 million people die on the road every year around the world. That's around 39 million people who've died on the roads around the world since I was born — equivalent to a city the size of Tokyo or New Delhi getting wiped off the map. The status quo is simply unacceptable, and something has to be done to fix it as soon as possible. Of the 1.2 million people that will die on the roads this year, about 40,000 will be Americans. That's about 3%. So if we moved entirely to self-driving cars in America and brought crashes down to 0, 97% of the world's crash fatalities would still be taking place as usual. Deploying a $200,000+ retrofitted self-driving car may work in a few American cities, but it is not going to make sense in most places around the world where fares are much cheaper. Most often, the choice is not between LIDAR and vision. It's between vision or nothing. The best system is the system that's there running on my car when I need it to save my life. To say that all self-driving cars must have LIDAR is to sentence most of the world to death. We can't write off computer vision if we want to make a serious dent in this problem. It's going to be a key piece of the solution. Let LIDAR based players build the best self-driving car they can, and let vision based players do the same. We need to be trying everything

Whole Mars Catalog

45,801 次观看 • 1 年前

Just finished a one-week trip to China. I've now "survived" all the major (~20) L2 self-driving and robotaxi vehicles in both the US and China. Some thoughts & observations: ▶️L2 self-driving I tested major brands like $Huawei, $Li, $NIO, $Xpeng, and $Xiaomi. Overall, they exceeded my expectations. The rides were not overly cautious and handled complex situations (yes, road conditions in China are very challenging!) quite well. Nothing compares to $Tsla's approach. I see imitation learning/end-to-end as the only effective approach for self-driving. While Chinese peers perform well on main roads, they struggle on frontage roads due to reliance on high-precision maps and rule-based methods (e.g. cars stopped in the middle of the road where there was no clear white lining). Chinese EVs' self-driving capabilities are far ahead of those from US and EU brands. I doubt any Chinese players can profit from L2 self-driving, not because it’s not useful, but because it’s hard to differentiate, and price wars dominate the market in China. Chinese consumers and regulators seem much more receptive to self-driving. Even with a 5/10 self-driving capability, cars are practically *hands-free(!)* Insurance-wise, for L3+ cars, OEMs bear responsibility for incidents, so OEMs avoid labeling cars as L3+. ▶️Robotaxi I tested major brands like $Didi, and $Bidu. I'd rate equal to $Waymo, and it's ahead of other peers. However, the same issue applies here: user experience is nearly perfect (in Yizhuang, Beijing), but expansion is the real question. Chinese robotaxi companies are very sophisticated. While the rest of the world focuses on technology, Chinese peers treat it as a product, considering unit economics, operations, mass production, etc. Interestingly, most companies expressed a preference NOT to operate fleets themselves. They aim to be asset-light and let fleet managers handle operations. Policy Support: China has a very clear approval process, driven by data (autonomous driving distance, fully driverless distance, intervention rate, passenger ratings, etc.). ▶️Chinese EVs In major cities like Beijing or Shanghai, EV adoption (green license plates vs. gas cars with blue license plates) seems to be 40%+. If 40% of cars on the road are EVs, then EV penetration (defined as the % of new car sales) must already be over 50%. In shopping malls, the ground floor is filled with EV showrooms—easily 10+ brands, many of which are unfamiliar Chinese brands. It appears almost too easy to make an electric car, which is a stark contrast to the US. $Xiaomi, for example, can achieve a 10% gross profit margin in its first year of operation, compared to $RIVN's -45%. Additionally, $Xiaomi cars are priced at 30% of $RIVN's price. It's fascinating to see how China transitioned from "couldn't make their own gas cars at all (only JVs)" to "dominating EVs globally." The government deserves credit for setting the direction and executing effectively. China now controls the entire supply chain, with $CATL holding 40% of the global market share. 🔹How did it happen? The success of the industry Incentives were set just right: the government provided incentives early on to make EVs and gas cars have comparable MSRPs, allowing consumers to choose based on functionality. This approach differs from how the IRA offers incentives... Perfectly competitive market: $TSLA was brought in, and competition was welcomed, unlike the US, which has a 100% import tax on Chinese EVs. Strategic regulations: License plate restrictions were used effectively; for example, taxis and minivans are required to be EVs. 🔹The challenges Despite the success, the industry faces challenges with low-margin companies and struggling stocks. The intense competition shows no sign of ending. Well-funded global OEMs and Chinese state-owned car companies continue to subsidize, leading to new EV brands emerging annually. The natural tendency in China is to race to the bottom. I think this ties back to China's history as the "world’s factory," where manufacturers price products at "cost plus" versus the US and developing countries, which price based on "affordability/value creation." 🔹The wow EV feature >Software features that surprised me the most: - Everything in the car can be voice-controlled. Not just simple tasks like playing music; users can adjust the height of the steering wheel and set the temperature easily. - Self-parking, which $Tsla has yet to release to all FSD users, is already a table stake in China (I'd rate the quality as 10/10). >Other fun hardware features: - Mini fridges in the car - Infotainment systems - IoT: remote access the car/home via cellphone - all connected together - Heads-up displays - UV-protected glass roofs: $Xiaomi took $Tsla's design, but the glass roof of the $Xiaomi car is made of double layers with silver, blocking 99.9% of UV and infrared rays...as a result, heat is no longer a problem inside the car

Freda Duan

399,004 次观看 • 2 年前

A new EV in the offing SERES 3 is going to be launched (locally assembled) soon in Pakistan. The expected launching price is PKR 9 million. I was given the opportunity to test drive the car. Here is my take: Like any other EV it is a more economical, soundless, and environmentally friendly car with a thrill of enjoying instant torque – I did 0 to 100 in 9 seconds (video attached). According to the manufacturers – in ideal conditions – the range is 400 km in full charge (battery capacity is 50 kwh). My experience is doing approx. 300 Km in Lahore traffic. Assuming electricity cost of Rs60/Kwh, the cost/Km is Rs9 which is 1/3rd of Sportage (the car I drive). Additionally, there is no engine maintenance cost, which makes it more economical (calculation comparison with Sportage FWD is attached). EV is the best driving option to improve the environment in your city – especially in smoggy Lahore. The biggest issue people have with EV is range anxiety – We as a family used this car for our daily errands and school runs and there was no stress for two days if we drove 80–100Km a day. The second biggest issue is that of charging. We charged this at home during the night -started charging after 11 PM (to avoid peak hour) and by 6 AM in the morning, the car is fully charged (from 30% to 100%) – hence, within city, there is no need to find a charging station. I may not prefer it on the long route – though technically it can run easily from Lahore to Bhera and within 30-40 mins charging there, the car would cruise to Islamabad. It’s a Chinese car, and I don’t like ICE Chinese cars; but in case of EV, it is a doable option. Chinese auto players are better in EV technology than Japanese and others. SERES has a very good road grip, very decent interior, and a good family car. My driver wants me to replace the one he usually drives with this one because of the cost saved in petrol. My gas guzzler-loving friends also approve of this eco-friendlier model. It’s going to be a new and exciting addition to the locally assembled cars. Good luck to Regal Motors.

Ali khizar

65,449 次观看 • 2 年前