7993 replies to this topic

[LJ]

Does it come down that slow all the time?

[Nparker]

Maybe the bridge shouldn't have taken that little blue pill before it was raised.

[Gary H]

^^It does.  IIRC, the requirement was 90 seconds.  As you can see from the video, it's taking about 60 seconds longer.  But wait, weren't those fancy German oil filters supposed eliminate the need to slow things down?

[Mike K.]

The parrots approved!

Thanks for that, Gary. It looks great. But yeah, it moves pretty slow.

[On the Level]

Johnson Street Bridge can't get it up....

 

https://vancouverisl...ition-1.5500888

[Barrrister]

I have a bad feeling about this. Hope I am wrong.

[spanky123]

Focus has been pretty quiet on this for the past 12-18 months but from what I recall, the original with the bridge that we had 2 years ago was never resolved. The remedy was to raise/lower the bridge at 1/2 the speed.

Edited by spanky123, 07 July 2021 - 07:41 PM.

[JohnsonStBridge]

Relax, everyone calls in sick every once in a while.

[Rob Randall]

It's expected that mechanical things break down from time to time.

 

What will be interesting to watch are the lengths the City takes to keep details of the mechanical problems off the pages of FOCUS magazine.

[Mike K.]

So in this case, did we need an architect to design the world’s most complicated lift bridge?

[sebberry]

Johnson Street Bridge can't get it up....

 

https://vancouverisl...ition-1.5500888

 

 

"UPDATE: The city said the bridge had returned to normal operations by 9 p.m. Wednesday."

 

Excellent reporting by the local media.  What was wrong?

[Sparky]

^ It didn't do the only job assigned to it.

 

It broke. The why it broke is going to be technical. 

 

Perhaps it was caused by a faulty limit switch on the external security retraction elevator override module.

[Matt R.]

It’s usually the thermocouple.

Matt.

[sebberry]

If it was properly balanced with the counterweights you should be able to just hang a few burly guys from a pullup bar on the short end of the teeter totter and lift it up manually.  

[Rob Randall]

It’s usually the thermocouple.

 

Or the Illudium Q-36 space modulator.

[spanky123]

If it was properly balanced with the counterweights you should be able to just hang a few burly guys from a pullup bar on the short end of the teeter totter and lift it up manually.  

 

Are you sure that is not what they are doing to fix the bridge?!

[Sparky]

Ok so it wasn’t the doohickey that caused the problem…it was just the computer. No worries then.

https://www.timescol...city-1.24340252

[Rob Randall]

I'm baffled as to how a "software issue" prevents a bridge from being manually opened. Is it really useless unless the computer is fully operational? There's no manual override or somesuch? Where they hit by that global ransomware shakedown?

[Victoria Watcher]

I'm baffled as to how a "software issue" prevents a bridge from being manually opened. Is it really useless unless the computer is fully operational? There's no manual override or somesuch? Where they hit by that global ransomware shakedown?

 

perhaps say a sensor that records hydraulic oil pressure was not returning a result or that result was not being received or recorded.  so the software prevents the bridge opening for fear of a dangerous high or low pressure level.

 

other sensors could include ones that detect the exact position of the lift or whether the locks are in place.  maybe even weather sensors that won't allow a lift under certain wind conditions. 

 

i do not think you want to "override" these sensors and lift manually if you do not know what they are reading even if an override is possible.

Edited by Victoria Watcher, 09 July 2021 - 05:17 AM.

[Rob Randall]

^All true. But couldn't it be solved with a simple reboot? What computer doesn't return to normal after a reboot?

 

And can it be closed if the computers don't work? Because that's why we spent a few extra millions, as a post-earthquake lifeline.

 

I have no expertise.