takk309

16 ms·

121.
by takk309 8y ago
On a project I am currently working on, we saw pedestrian fatalities shift from 7 to 13 in consecutive years. it is a nearly 100% increase but like you said, it is just noise. This is in a city with around 100,000 residence. Convincing poli
122.
by takk309 8y ago
Drunk drivers and people that don't wear seat belts are still worth reviewing. While there are rarely engineering solutions to the fatalities that result, it can help inform education programs and initiatives. Amazingly, buckle-up and
123.
by takk309 8y ago
Generally it is based on the relative costs of a non-injury vs other injury types. So the weight is equal to cost of fatality divided by cost of non-injury. Keep in mind that these values vary from region to region. We use the 1, 3, 8 group
124.
by takk309 8y ago
Nice work, I am glad that there is a paragraph talking about exposure. Crash trends based strictly on total number of crashes are easy to predict just based on where there is more traffic. Using crashes per vehicle mile traveled for road se
125.
by takk309 8y ago
With regards to point #2, do you really think that multiple manufactures will be able to agree on a single vehicle to vehicle communication protocol that is robust enough to sort out shifting around a parking lot? Or would the parking lot h
126.
by takk309 8y ago
My wife's PhD project has been modeling sound in a marine environment. She is using data collected around an offshore tidal generation site in Washington state and using finite differencing to create models of the whole region. While I
127.
by takk309 8y ago
Greg Bear is a good option if you like hard sci-fi. I really liked Forge of God and Anvil of the Stars. There are a few of the themes you talk about but in a more realistic sense.
128.
by takk309 8y ago
The First Order actively chose not to fire on the kamikaze ship. Though, I do have to wonder why they couldn't have a droid fly the ship? There are plenty of other instances of droids piloting ships.
129.
by takk309 8y ago
For the Saturn V, they specifically chose the piece count of 1969 as a sort of Easter Egg referencing the year of the Moon landing.
130.
by takk309 8y ago
I climb regularly and can say that I am a bit concerned that the finger print scanner on my Pixel 2 works as often as it does. It makes me wonder if the initial scan of an abused finger means that it will read false positives more often.
131.
by takk309 8y ago
Using existing sensor to collect more data is an ongoing challenge for many municipalities. There is an add on module for signal controllers that can be used to count vehicles and depending on the detection type (video, inductive loop, or m
132.
by takk309 8y ago
It can really depend on the roundabout layout and the pedestrian. For multi-lane entry/exits, it can be daunting to cross for some pedestrians. The refuge island between the entry/exit can help with this. For individuals with sigh
133.
by takk309 8y ago
Two things that I see as problems with this type of system: pedestrians/nonmotorized users, and the need for 100% of vehicles to be on the system. Starting with pedestrians, it is important to have adequate crossing time for a pedestri
134.
by takk309 8y ago
From my limited understanding information is meant to mean the characteristics of a given particle; the waveform, spin, etc.
135.
by takk309 8y ago
Thanks for the great reply.
136.
by takk309 8y ago
Would this be one way that information would not be destroyed, at least from the reference frame of the outside observer?
137.
by takk309 8y ago
Don't forget about one of my favorite cycling records, the penny farthing 1 hour record. It is a record that has been standing for 132 years![1] [1] https://www.cyclingweekly.com/news/latest-news/mark-beaumont
138.
by takk309 8y ago
Here is a video that Wired released a few days ago that discusses the details of the tow hook and the little bar: https://youtu.be/cZhrqKrljig
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by takk309 8y ago
Excellent counterpoint. Keep in mind that I was a Civil Engineering student, not computer science. My abilities to use Latex were little-to-none at the time. I didn't get any exposure to it until I was in grad school and we used it to
140.
by takk309 8y ago
I could not imagine trying to take notes with a computer in a math heavy subject. I had to use paper for everything during my undergrad in Civil Engineering. However, if you already have a computer with you, record the lecture and review it
141.
by takk309 8y ago
Personally, I would much rather purchase a vehicle through a dealer so that if and when I do need service or repair work done I can just use the dealer. I have read far too many Tesla repair horror stories.
142.
by takk309 8y ago
Traditional technologies and techniques for earth moving are rather simple and well refined. Moving soil still requires one to excavate the soil and transport the soil. I can't see any way around that. There are only so many ways to im
143.
by takk309 8y ago
I am not familiar with the soil under LA but in many cases it gets much more expensive to "stack" tunnels. The construction of the upper tunnel relies on the stability of the soils underneath for support. Constructing a tunnel und
144.
by takk309 8y ago
Decades of civil engineering differs with you. The cost to move a cubic yard of soil is rather well known for a given area. Labor costs are well established. I don't see how he is going to cut enough corners to make it cheaper by any n
145.
by takk309 8y ago
How is it that the logic is flawed? There are real-world examples of undersized tunnels limited the growth of a subway network. London was specifically called out in the article.
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by takk309 8y ago
A gondola has hardware that can be removed in the future, possibly even sold to another user. A tunnel would be very permanent and possibly cause problems in the future. As the article stated, it is very hard to expand the size of a tunnel
147.
by takk309 8y ago
From the article, "Yes, this requires pre-mapping, but so does lidar. And WaveSense says that remapping should be far less frequent as conditions under the road are less subject to change than they are above ground." I don't
148.
by takk309 8y ago
I have traveled with a nuclear soil density gauge a few times and was always told to keep it in the truck at night so as to minimize my exposure. That said the case was locked and the case was then locked by two independent locks to the tru
149.
by takk309 8y ago
I read in one of the many news reports that the kids had a hand crank flashlight. Hopefully, for their sanity, that was true.
150.
by takk309 8y ago
I read this as Tesla is also an imitator. There system is not autonomous driving, it is just a poor imitation of autonomous driving. Tesla, GM, etc. are all just advanced cruise control.

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