r***k
发帖数: 13586 | 1 In the United States, U-turn regulations vary by state: in Indiana U-turns
are allowed as long as the driver follows all of the precautions normally
ascribed to making a left turn (yielding right-of-way, etc.). Many places,
including Texas and Georgia, have specially-designed U-turn lanes (referred
to as Texas U-turn lanes). In Michigan, U-turns are required for many left
turns to and from divided highways, as part of the Michigan Left maneuver (
also referred to as a Michigan Turn). |
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o****e
发帖数: 536 | 2 "For off-road travel there's a full-time four-wheel-drive system with
locking Torsen differential that continuously apportions torque between the
front and rear axles. It automatically directs power according to the
traction available at each of the four corners. In normal highway conditions
, power is split 40/60 percent front/rear. If the rear wheels spin, the
differential can change the front/rear ratio to 53/47 percent to control the
slippage. In steering maneuvers, the system sends more pow... 阅读全帖 |
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T*U
发帖数: 22634 | 3 按理说这是PIT maneuver, 失控的怎么都该是jeep，翻车的都有可能，怎么可能是
odyssey。 |
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y*******7
发帖数: 579 | 4 网络上看了很多关于这个网站的推介，http://www.gototrafficschool.com/
就注册去上课了，发现价格已经改了，是$19，
不过用promotion code (X2B-C8B-A94) 依然可以减少$2。
现在已经不能只是开着电脑耗时间了，我试着开机，但出去了3-4个小时，回来就要求
重新log in了。而且也不能直接参加final exam，必须答对各章的所有试题才能到达
final exam，而且各章的题目之后还有一题“security question”，就是问关于前面
学习材料中的图片、录像中的内容，所以还不得不点击看看，总共也需要不少时间。不
过有个节约时间的方法，就是先到问题的一页，看完问题再点击“previous”回到前一
页寻找答案，利用IE的“编辑”菜单下“查找（在当前页）”的功能可以快速定位。如
果中途log off再回来log in，得一页页翻过之前做过的章节，不过不需要重新做题就
是。到达上次退出地方，就自动加载之前这一章的内容。
欢迎大家使用promotion code：X2B-C8B-A94
http://www.gototraff... 阅读全帖 |
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s********3
发帖数: 3476 | 5 What is the difference between Full time Four Wheel Drive (4WD) All Wheel
Drive (AWD) and automatic All Wheel Drive (auto AWD)?
Full time 4WD, also called permanent 4WD, (not to be confused with: part
time 4WD ) is a system that powers all four wheels at all times and it can
be used full time on all surfaces including pavement. The additional feature
of a differential incorporated into the transfer case makes it possible to
use 4WD all the time.
2WD is not available (only part time 4WD offers th... 阅读全帖 |
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r******y
发帖数: 471 | 6 有的黄灯时间确实很短，上个月刚拿了个加起来600多刀的左拐红灯罚单，以后不再担
心了。 庆祝啊。
Los Angeles, California Red Light Camera Program Officially Canceled
Los Angeles, California Red Light Camera Program Officially Canceled
City council votes to take down red light cameras in Los Angeles, California.
Councilman Dennis ZineRed light cameras are coming down in Los Angeles,
California after midnight on Sunday. The city council yesterday voted
unanimously to drop the program primarily over the county court system's
refusal to enforce u... 阅读全帖 |
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l****g
发帖数: 5080 | 7 来点数据，避免瞎子摸象。
US Driver Death Rates from 2002–2005 in recent models (per million
registered vehicles)[4]
small 4 door cars (14 models): 45-191
mid-size 4 door cars (17 models): 14-130
large 4 door cars (11 models): 57-118
mid-size luxury (8 models): 11-54
large luxury (11 models): 14-85
large mini-vans (5 models): 36-97
very large mini-vans (6 models): 7-54
small SUVs (13 models): 44-132
mid-size SUVs (34 models): 13-232
large SUVs (16 models): 21-188
v... 阅读全帖 |
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l*******s
发帖数: 7316 | 8 Worth to buy?
must Sale before March!!!!2009 Toyota Prius Hybrid- - $12000 (madison
heights)
2 owner. .100,000mileage 2009 toyota prius. color of grey and in good
condition. clean tile. clean indoor. no accident record. two keys for the
car.
Outstanding fuel economy, generous amount of interior space, easy to
maneuver in tight spaces, high-tech and luxury goodies available.
If you are looking for a gas-saving car, this one will be your perfect
choice!!!!!!
Nothing wrong with the car. I sell it j... 阅读全帖 |
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f****t
发帖数: 25 | 9 这个叫move over law, 刚出台的时候，如果不能换lane，定量的要求司机减速到
speed limit-20。也许有的州有规定减速到20mph，不过我没有听说过。
我知道的各州，现在要么沿用这个数字，要么修改条款不再有定量数字。
比如，要求speed limit-20的：
http://www.leg.state.fl.us/statutes/index.cfm?mode=View%20Statu
Shall slow to a speed that is 20 miles per hour less than the posted speed
limit when the posted speed limit is 25 miles per hour or greater; or travel
at 5 miles per hour when the posted speed limit is 20 miles per hour or
less, when driving on a two-lane road, except when otherwise directed... 阅读全帖 |
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f*****b
发帖数: 1649 | 11 高速上，最高档位，限速以内，正常载重。当碰到险情需要油门到底，紧急加速时，是
不是汽油机反应更快，加速更快啊?
这个问题有实际意义。 |
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i****x
发帖数: 17565 | 12 汽油机反应更快，跟什么比？一般的讲法是NA发动机比turbo发动机反应快，因为turbo
有turbo lag，压力上来之前扭矩比NA机还低。 |
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f*****b
发帖数: 1649 | 13 NA 是不是就是普通汽油机? 看来我的感觉不错。
最近打算换车，如果上SUV，可能就上个结实的柴油车了。因为大车比较笨重，加速就
不讲究了。碰到状况直接开过去。。。速度慢点也没事，安全更重要。
我比较喜欢马力，操控上redundance 比较多的车型。
turbo |
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i****x
发帖数: 17565 | 14 NA, natural aspiration, 自然吸气。马力比较小，但是油门反应没有任何延迟，而且
比较线性，适合跑车。除跑车和廉价车外turbo已经是大趋势了，买菜本来也无所谓操
控、反应啥的。 |
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f*******r
发帖数: 5301 | 15 这种情况多级降档延迟一般就要一秒的规模 所以你得先研究变速器 |
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f*****b
发帖数: 1649 | 16 主要是考虑高速上的安全性
关键时刻一秒钟的反应差别就很大
但是又需要SUV. .. |
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h****y
发帖数: 9234 | 18 在乎这一秒钟的反应的话,还是上手动吧.
你全油门自动档的车还得考虑一下你是要猛加速, 然后再给你降个档,然后动力再上去.
... |
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i****x
发帖数: 17565 | 21 漂亮！旁边的LH档是啥？这车不会一共12档吧？ |
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f*******r
发帖数: 5301 | 24 大suv多是给soccer mom开的
可以看同平台的皮卡 手动的很多 柴油更是要上手动 |
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n****e
发帖数: 6292 | 25 full size皮卡里面,只有ram2500/3500柴油版有手动选项;小一些的pickup里面,tacoma和frontier全系,以及4缸ranger,colorado,canyon有手动选项. |
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j**u
发帖数: 399 | 26 这个好，第一次看到手动挡fj的档位照片。个人感觉现在手动suv里面，fj是最好的了
。遗憾的是再没有比fj更大的手动suv了。可能卡宴比较大一些，但那不是一般人能选
择的了。 |
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f*******r
发帖数: 5301 | 27 cayenne不贵吧 不到五万 只比touareg贵一点点
买个minivan改装的mdx还得四万呢 |
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A***n
发帖数: 8859 | 28 大神，七座哪个有手动？连内子都会开手动。
tacoma和frontier全系,以及4缸ranger,colorado,canyon有手动选项. |
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f*****b
发帖数: 1649 | 35 手动真是不方便 特别是如果lp也开的话
自动档带sporty模式怎么样
去. |
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f*****b
发帖数: 1649 | 36 唉 算了 去搞个大马力的SUV开着先 以后再说了
说不定过两年满街都是电瓶车了... |
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j**u
发帖数: 399 | 37 要是算国产车，7座手动可是一大堆。
豪车有个手动就不错了，肯定不指望手动能有高配的。 |
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i****x
发帖数: 17565 | 38 我查了一下，校车安全标准还是70年代定的。
1977 safety standards
The focus on structural integrity spurred new requirements in the U.S.
Federal Motor Vehicle Safety Standards for school buses, most of which
became applicable for school buses on April 1, 1977. These standards are
still in effect today.
Standard No. 217 - Bus Emergency Exits and Window Retention and Release (
Effective September 1, 1973)
This established requirements for bus window retention and release to reduce
the likelihood of passenger ejection ... 阅读全帖 |
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j****n
发帖数: 236 | 40 http://www.redding.com/news/2011/jun/11/must-i-change-lanes-for
Q: Could you tell me the law in regard to a vehicle traveling along
Interstate 5 and going past a patrol car with lights on and off the side of
the road on the shoulder? Any different law with a single vehicle or one
pulling a trailer?
A: First, the California vehicle code states: "A person driving a vehicle on
a freeway approaching a stationary authorized emergency vehicle displaying
emergency lights, or a stationary tow truck disp... 阅读全帖 |
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w**e
发帖数: 2424 | 41 开庭了，据说是骗保套现220万美元
Bugatti Veyron crashing into lake (still snipped from YouTube)The 2009
YouTube video that caught a man crashing his $1 million 2006 Bugatti Veyron
into a roadside lagoon in Texas went viral, notching almost 4 million views,
and is now at the center of an impending insurance-fraud trial. In the
video (which appears after the jump and contains a bit of language some may
find offensive), the Veyron, one of the world's fastest production cars, can
be seen veering into the water.
An... 阅读全帖 |
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e*9
发帖数: 2289 | 42 Several weeks ago, the Swedish magazine Teknikens Värld revealed that
the Jeep Grand Cherokee failed their "moose test" avoidance maneuver, going
up on two wheels. But recent testing by another European magazine got a
different result.
The German magazine Auto Motor und Sport (AMS) used the same Grand Cherokee
Overland CRD press vehicle as did the Swedes. However, their "moose test"
differed slightly from the Swedish test; the German magazine used an ISO (
International Standards Organizati... 阅读全帖 |
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h**********r
发帖数: 2284 | 43 No need.
Small or mid-size SUV is much more appealing and convenient enough. You'll
feel the space is wasted and it's harder to maneuver compared with small-mid
SUVs. |
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t**********t
发帖数: 364 | 44 test drive first, they drive quite differently.
x3 is more fun to drive and maneuver more precisely over corners, it is
faster even with 4-cylinder engine and with better mpg. x3 also has more
reasonable interior space, especially the back seat, about same space as Q5.
it is not quite comfortable to sit in the back seat of glk350, and it is
almost impossible to sit 3 adults in glk350's back seat.
i can only think of two pros of glk350 comparing to x3:
1) it is probably 3k-5k cheaper for similar ... 阅读全帖 |
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w********r
发帖数: 14958 | 45 我本科就是自动控制出身阿。
另外你说的“人类可控”这实在难以精确理解。 我想你可能指的是哪怕牺牲最优指标
，故意出现让轮胎完全滑动的特技。
说道根源，这是几种解决问题的philosophy的不同。 人控制机器通常是掌握几个基本
技巧，然后用自己主观判断来build高级的maneuver。 这个往往把问题变成一种art,
能否解决问题要靠某个人的经验和发挥。 至于能够可靠解决一件事，没有任何保证。
scientific 的philosophy则恰恰相反。 尽量要把art变成science。 所关心的问题的
方面不一样。 这里关心的是一系列实际dynamic constraints组成的常微分方程组外加
各种不等式组，存在不存在可行解。 如果存在很多解，能不能找出最优解。 现在的算
法已经可以满足在满足一系列technical 假设的前提下，具体车辆飞机等例子，可以找
出解，并且渐进最优。
人的具体发挥只不过是scientific方法的一个子集。 至于你所说的“人类可控”，只
要定义出合理的cost function。 把人希望的动作定义为某种情况下的最优解。 问题
即迎刃而解。
另外... 阅读全帖 |
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a*******a
发帖数: 4212 | 46 真正应该比较的是durango 和Caravan
Dodge Grand Caravan and Dodge Durango
The refreshed Dodge Grand Caravan is prepared to battle the minivan
competition for the 2011 model year. Then again, the same could be said
about the new Dodge Durango against its large SUV competitors. Chrysler's 3.
6-liter Pentastar V-6 powers both vehicles, making 283 horsepower in the
front-wheel-drive minivan and 290 horsepower in the rear-wheel-drive Durango.
Fuel economy for the Durango V-6 is 16/23 mpg city/highway, which is ... 阅读全帖 |
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w*******s
发帖数: 1644 | 47 Road TestSE Hybrid 4-cyl CVT
In a class generally known for bland styling and a lack of driving
excitement, the redesigned 2013 Fusion is a fresh, charismatic newcomer. But
like some promising and talented celebrities, it has just enough quirks to
erode your enthusiasm.
The new Fusion looks upscale and stylish, and it handles like a really good
European sports sedan. We bought three versions: a top-trim Titanium, a mid-
trim SE, and the SE Hybrid. All versions provide a composed, civilized ride
... 阅读全帖 |
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s******e
发帖数: 243 | 48
减速
那你说说不猥琐该怎么着，给卡车来个pit maneuver? |
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g********d
发帖数: 19244 | 49 ☆─────────────────────────────────────☆
bds16 (song) 于 (Mon Apr 1 12:00:27 2013, 美东) 提到:
纠结很久了，到底该买个大车还是来个fun car。
最后决定趁着年轻，搞个fun car 玩玩，预算4w-4.5w
初步定了几款 FX35/37 G35 350z 328 c250 都是入门车
350z 直接被lp淘汰，说像“包子”。。。
G35 开了开，方向盘指向性很差，样子很帅！
FX37 我的大爱，就是稍微贵了点，而且这个车以后年纪大了也能开，最后决定选个入
门德车玩玩。
c250 coupe 和 328 coupe
我个人比较倾向BMW，国内玩过5系，不是自己的车，不用保养，就是拿来瞎搞，很爽！
周末现在门口的benz 转了一圈，看看了c250 coupe 红色，LP 一眼就看上了，车里面
确实能稍微看出点好车的影子，做工也很细致。没有试驾，不知道为什么看车的人很多
，saler 不够。而且我心系bmw，拉着老婆奔向BMW
废话不说了，挑了辆白色 328 coupe 直接跑上高速。这车的内饰... 阅读全帖 |
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g*********r
发帖数: 403 | 50 From Wikipedia, the free encyclopedia
Jump to: navigation, search
The examples and perspective in this article may not include all
significant viewpoints. Please improve the article or discuss the issue. (
July 2010)
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The neutrality of this article is disputed. Relevant discussion may be
found on the talk page. Please do not remove this message until the dispute
is resolved. (October 2008)
A Ford Excursion SUV next to a Toyota Camry
Sport utility vehicles (SUVs), tru... 阅读全帖 |
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