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Level Crossing System 2
Level Crossing System  
Level Crossing System 1
Level Crossing System  
QUESTION: Dear Prof Scott

http://en.wikipedia.org/wiki/Level_crossing

Do you feel Automated Level / Railroad Crossings (i.e. Without Manual Intervention) of opening /closing gates have an edge over manual railroad systems in terms of prevention of pedestrian accidents,collisions of vehicles with trains i.e. safety measures ?.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

ANSWER: Of course, if the program for opening the gates is checked out.
When something is automated and all of the bugs are worked out, it is always right.
When a person is asked to do something, there are errors now and then.

Yet when a person is operating the machine, sometimes we feel safer.

In the same way walk signs work on a street, however,
I believe these signs can be made to work just as well.

---------- FOLLOW-UP ----------

QUESTION: Dear Prof Scott

Thank you.

Do you feel Automated Level / Railroad Crossings (i.e. Without Manual Intervention) of opening /closing gates have an edge over manual railroad systems in terms of prevention of pedestrian accidents,collisions of vehicles with trains i.e. safety measures ?.

Do you feel if "Level Crossing Ringtones" i.e. Warning audible alarm bells are generated before 10-15 minutes to a Smartphone / Cell Phone Automobile / Vehicle driver can help him / her to slow down the vehicle before reaching the Level / Railway Crossing". ?.

The Level Crossing Ringing tones will ring the alarm bells audible sound as "Level Crossing Ahead at this Specific Geographical Location".

i.e. Smartphone / Cellphone Application / program design for this functionality.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
Almost all of the railroad crossing I have seen have a gate that swings down now as bells go off.  The bells start well before the train gets there (kind of like a yellow light), and then when the train gets close, the gates come down (kind of like a red light).  These have seen to drastically reduce the number of accidents - that's why they put them up all over.

If they also had a way to make Smartphones / Cellphones beep, this would improve the system.

Some would say the way the system is is good enough, but I say that maybe some improvement should be looked into.  

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Scott A Wilson

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I can answer any question in general math, arithetic, discret math, algebra, box problems, geometry, filling a tank with water, trigonometry, pre-calculus, linear algebra, complex mathematics, probability, statistics, and most of anything else that relates to math. I can also say that I broke 5 minutes for a mile, which is over 12 mph, but is that relevant?

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Experience in the area; I have tutored people in the above areas of mathematics for over two years in AllExperts.com. I have tutored people here and there in mathematics since before I received a BS degree back in 1984. In just two more years, I received an MS degree as well, but more on that later. I tutored at OSU in the math center for all six years I was there. Most students offering assistance were juniors, seniors, or graduate students. I was allowed to tutor as a freshman. I tutored at Mathnasium for well over a year. I worked at The Boeing Company for over 5 years. I received an MS degreee in Mathematics from Oregon State Univeristy. The classes I took were over 100 hours of upper division credits in mathematical courses such as calculus, statistics, probabilty, linear algrebra, powers, linear regression, matrices, and more. I graduated with honors in both my BS and MS degrees. Past/Present Clients: College Students at Oregon State University, various math people since college, over 7,500 people on the PC from the US and rest the world.

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My master's paper was published in the OSU journal. The subject of it was Numerical Analysis used in shock waves and rarefaction fans. It dealt with discontinuities that arose over time. They were solved using the Leap Frog method. That method was used and improvements of it were shown. The improvements were by Enquist-Osher, Godunov, and Lax-Wendroff.

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Master of Science at OSU with high honors in mathematics. Bachelor of Science at OSU with high honors in mathematical sciences. This degree involved mathematics, statistics, and computer science. I also took sophmore level physics and chemistry while I was attending college. On the side I took raquetball, but that's still not relevant.

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I earned high honors in both my BS degree and MS degree from Oregon State. I was in near the top in most of my classes. In several classes in mathematics, I was first. In a class of over 100 students, I was always one of the first ones to complete the test. I graduated with well over 50 credits in upper division mathematics.

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My clients have been students at OSU, people who live nearby, friends with math questions, and several people every day on the PC. I would guess that you are probably going to be one more.

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