Showing posts with label Rail Equipment. Show all posts
Showing posts with label Rail Equipment. Show all posts

Tuesday, December 9, 2008

Rediculous Costs + Dumb Ideas

If you can't take a 2 of 6 lanes for rail or bus and get to the Oakland Airport just 3.2 miles away for $386 million dollars, there is something seriously wrong. I posted this a month ago, but after seeing this post, it seems as if BART is just not paying attention to what is going on in the world. No wonder people don't trust you to build the extension to San Jose. You're just trying to spend all the money you have when you don't really have to in order to get the job done. What a waste of money. It's not hard guys. Wake up.

Monday, December 1, 2008

Monday, This Is What We're Up Against

This never should have happened.

Based on Milwaukee's northwest side, the company makes rail cars for freight railroads and commuter rail systems.

"In the past few months, we have seen dramatic and unprecedented reductions and cancellations of orders by our customers in the freight locomotive, transit and transportation sectors of our business," the company's statement said. "Without substantial new orders, we cannot sustain the employees at the plant beyond the time frame outlined above."

It seems crazy that a business like this could be going under right before demand could kick in.

Friday, June 27, 2008

Epic Fail

I think LOLstuff is pretty funny. This one probably wasn't funny when it happened but its quite transit oriented and a bit humorous now. There's a similar picture of a railroad fail where the train fell out of the second story of a station. Ah I think I found it.

But the photo below kind of got me thinking on how diesel buses are the work horse of transit yet they are still susceptible to all the price hikes and gas issues that hit cars. I wish they weren't, but they don't all have alternatives to diesel yet. Perhaps more trolley buses would help save agencies money. Just a thought.

fail owned pwned pictures
see more pwn and owned pictures

Tuesday, April 22, 2008

Overhead Wires, Pantographs, & Trolleypoles

Warning, rant approaching:

Ben Wear from the Austin American Statesman wrote an article on his blog today on the proposal for an Austin starter line by Roma design. In the article he muffed the overhead wire, not my blog, but the technology details.
Light rail, as opposed to the commuter rail opening late this year or early next year, is generally powered by electricity and has a system or overhead wires that connect to devices on the top of the cars called “catenaries.”
Sigh. The devices on the top of the vehicles can be two things, Pantograph or a Trolley Pole, just like my nom de plume. Interesting history point, the pantograph was actually invented by none other than the east bay Key System, now AC Transit, which had it's 50th tear down anniversary last week. The catenary is actually the support wire for the electric wire. From wikipedia:


To achieve good high speed current collection, it is necessary to keep the contact wire geometry within defined limits throughout the length of the overhead line. It is usually achieved by supporting the contact wire from above by means of a second wire, known variously as the messenger wire (US & Europe) or catenary (UK & Canada). This wire is allowed to follow the natural path of a wire strung between two points, which is known as a catenary curve, thus the use of catenary to describe this wire or sometimes the whole system. This wire is attached to the contact wire at regular intervals by vertical wires known as droppers or drop wires. In this way the contact wire is effectively supported at numerous points.

The messenger wire is supported regularly at structures, either by means of a pulley, link, or clamp. The whole system is then subjected to a mechanical tension. The messenger wire is usually pulled slightly to the left and right by successive supports, so that the contact wire slides from side to side(stagger) on the pantograph as the vehicle moves along (if it did not then it would tend to wear a groove in the pantograph's carbon insert). Such a system, with a single supporting wire, is known as simple equipment.
Sometimes we also call simple equipment a trolley wire which is much more aesthetically pleasing and should be used in downtown settings to minimize the visual pollution. I know this is a bit picky, but if you're going to continuously pick on the local transit agency on details, at least get yours straight.

Rant off.