XPO artic couldn’t limbo going under a 14’ 3 “ bridge in Sandown IOW today
Sandown: Trains halted after lorry hits railway bridge bbc.co.uk/news/uk-england-h … e-63239538
He also forgot to strap the load.
Appalling effort 4/10
Why are the BBC reporting “wedged” and “jammed” under the bridge? Doesn’t appear to be anything of the kind, just the driver decided to stop rather than reverse out.
The trailer looks in a bad way, but do the trains need to stop for a bridge inspection? I can see from here it looks fine (solid steel girder vs. flimsy light trailer).
They have trains on the Isle of Wight!
Macski:
They have trains on the Isle of Wight!
Refurbed D train underground stock(Due to restriction in the Ryde esplanade tunnel ) , basically apart from the main body every thing has been replaced , track and signalling all replaced in 2021
Also a steam railway that runs from Small brook Jct to Haven street
Looks like the trailer ns wheels are up on the kerb, possibly the ns tractor wheels too adding some 3" to ns height, or is that the result of trying to back out?
Also if thats a light load and driver left the mid lift up, trailer ns would be around 3" higher than normal, don’t know how high that trailer would have been but possibly adding 3 or 6" won’t have helped.
stu675:
Why are the BBC reporting “wedged” and “jammed” under the bridge? Doesn’t appear to be anything of the kind, just the driver decided to stop rather than reverse out.
The trailer looks in a bad way, but do the trains need to stop for a bridge inspection? I can see from here it looks fine (solid steel girder vs. flimsy light trailer).
ANY reason for the “Incident Team” to race about in their new vans with the beacons flashing and clipboards at the ready…hundred year old girder jobby wipes out flimsy c/sider, let`s close everything down and hope the cameras turn #hardcoreheroes #jobsworths
stu675:
Why are the BBC reporting “wedged” and “jammed” under the bridge? Doesn’t appear to be anything of the kind, just the driver decided to stop rather than reverse out.
The trailer looks in a bad way, but do the trains need to stop for a bridge inspection? I can see from here it looks fine (solid steel girder vs. flimsy light trailer).
ANY reason for the “Incident Team” to race about in their new vans with the beacons flashing and clipboards at the ready…hundred year old girder jobby wipes out flimsy c/sider, let`s close everything down and hope the cameras turn up #hardcoreheroes #jobsworths
Stanley Mitchell:
stu675:
Why are the BBC reporting “wedged” and “jammed” under the bridge? Doesn’t appear to be anything of the kind, just the driver decided to stop rather than reverse out.
The trailer looks in a bad way, but do the trains need to stop for a bridge inspection? I can see from here it looks fine (solid steel girder vs. flimsy light trailer).ANY reason for the “Incident Team” to race about in their new vans with the beacons flashing and clipboards at the ready…hundred year old girder jobby wipes out flimsy c/sider, let`s close everything down and hope the cameras turn up #hardcoreheroes #jobsworths
Wheres the like button.
PS I heard you the first time
stu675:
Why are the BBC reporting “wedged” and “jammed” under the bridge? Doesn’t appear to be anything of the kind, just the driver decided to stop rather than reverse out.
The trailer looks in a bad way, but do the trains need to stop for a bridge inspection? I can see from here it looks fine (solid steel girder vs. flimsy light trailer).
Because you’re not supposed to reverse out of a bad bridge strike, the truck may very well be the thing that’s holding the bridge up! Official guidance from Network Rail.
And yes, trains do need to be stopped until a proper bridge examiner has certified it is, or is not, safe. Metal can be weakened, welds damaged, bridge can be knocked out of alignment, and rail tracks can easily be misshapen, trains can be derailed, resulting in a potential loss of life. A former colleague of mine damaged a bridge just by whacking it with the sheeting system, which snapped clean off.
Sheeting system weighed around 100kg, at 56mph that translates to a force of 2.5T hitting the bridge (f=ma). The pipes carrying water over the bridge were cracked, that was obvious from the water spewing everywhere, god knows what damage invisible to the naked eye was done.
A good bridge strikes awareness course can be a real eye opener, especially the part where you’re told a bridge strike will most likely result in a Drive Conduct Hearing with the TC, who will have a starting point for removal of HGV entitlement of 6 weeks
Zac_A:
Because you’re not supposed to reverse out of a bad bridge strike, the truck may very well be the thing that’s holding the bridge up! Official guidance from Network Rail.And yes, trains do need to be stopped until a proper bridge examiner has certified it is, or is not, safe. Metal can be weakened, welds damaged, bridge can be knocked out of alignment, and rail tracks can easily be misshapen, trains can be derailed, resulting in a potential loss of life. A former colleague of mine damaged a bridge just by whacking it with the sheeting system, which snapped clean off.
Absolutely.
I can only imagine that the previous posters think that bridge decks are somehow bolted or fixed onto the piers at each end?
They are heavy, but it doesn`t take much movement to distort a rail line out of spec, and the further effects of heavy and maybe high speed trains multiplies the damage.
“Yeah, that looks OK”… is well up the list of famous last words.
Lets say that truck was doing 25mph, lets say it was loaded with something not particularly heavy, lets give it a mass of 20T, fairly conservative I think?
f = ma, or force = mass * acceleration
therefore f= 20T x 25mph
need to convert 20 T to kg, that’s easy, 20,000kg, m=20,000
need to convert 25mph to metres per second (the SI unit of speed) = 11.2 (to one sig fig)
Now we have: f = 20,000kg X 11.2 = 224,000 Newtons, which as far as we’re concerned is ■■■■ near the same as a kilogram
therefore the force of the impact is 224,000kg, or more conveniently, 224 Tonnes
Franglais:
“Yeah, that looks OK”… is well up the list of famous last words.
along with “unsinkable” as a description for an ocean liner
And we have a new addition to that list from today:
“I’m not going anywhere” Kwasi Karteng, Chancellor of the Exchequer from… I blinked and I missed it By god he’s going to regret that remark
Doesn’t look like an XPO unit, the trailer definitely is, I think that’s probably a sub contractor…
If its a local should know better…
That’s going to be another brief to read and sign…lol
Stephenjp:
Doesn’t look like an XPO unit, the trailer definitely is, I think that’s probably a sub contractor…If its a local should know better…
That’s going to be another brief to read and sign…lol
Not a Jempsons from Rye ?
That’s a British gypsum unit
blue estate:
https://maps.app.goo.gl/ztr62LB5Xfu6GXyr5?g_st=ic
Oh look a nice big blue sign with a arrow saying over height turn right
Zac_A:
Lets say that truck was doing 25mph, lets say it was loaded with something not particularly heavy, lets give it a mass of 20T, fairly conservative I think?f = ma, or force = mass * acceleration
therefore f= 20T x 25mph
need to convert 20 T to kg, that’s easy, 20,000kg, m=20,000
need to convert 25mph to metres per second (the SI unit of speed) = 11.2 (to one sig fig)Now we have: f = 20,000kg X 11.2 = 224,000 Newtons, which as far as we’re concerned is ■■■■ near the same as a kilogram
therefore the force of the impact is 224,000kg, or more conveniently, 224 Tonnes
Force = mass x ACCELERATION (not speed). You need to establish the time taken for the lorry and load to decelerate to zero and from that calculate its acceleration in metres per second per second.
Roymondo:
Zac_A:
Lets say that truck was doing 25mph, lets say it was loaded with something not particularly heavy, lets give it a mass of 20T, fairly conservative I think?f = ma, or force = mass * acceleration
therefore f= 20T x 25mph
need to convert 20 T to kg, that’s easy, 20,000kg, m=20,000
need to convert 25mph to metres per second (the SI unit of speed) = 11.2 (to one sig fig)Now we have: f = 20,000kg X 11.2 = 224,000 Newtons, which as far as we’re concerned is ■■■■ near the same as a kilogram
therefore the force of the impact is 224,000kg, or more conveniently, 224 TonnesForce = mass x ACCELERATION (not speed). You need to establish the time taken for the lorry and load to decelerate to zero and from that calculate its acceleration in metres per second per second.
Equals Oh Shhhhhh a bridge