Nightmare On The Buses
The title of this post, is not the title of a horror remake of the popular 1970s-sitcom’ On The Buses, but a description of my journeys on a 141 bus today.
Until, last Friday, I had two buses; the 21 and 141 to take between my house and Moorgate, which is an important destination for me.
- There is a large Marks and Spencer food store there, where I regularly buy the gluten-free food, I must have as a coeliac.
- There is a LEON there, where I regularly have my gluten-free breakfast.
- Moorgate station is a good transport interchange from which I regularly start journeys over London.
But now there is only one bus; the 141.
In November 2021, I wrote The Great Bus Robbery, where I said this.
What is TfL’s latest crime?
The 21 and 271 buses are going to be combined into a new route between Lewisham and Highgate, which will go nowhere near the Balls Pond Road.
So we’ll just have the one bus route to the City of London.
On past form, if TfL say they will increase the frequency, I wouldn’t believe them.
This was my conclusion.
We will need the 21 bus to provide us with a route to Crossrail, as the 141 buses will be full.
The 21 bus is needed where it is and mustn’t be stolen.
Note that Crossrail is now called the Elizabeth Line.
Today, I made three journeys between my house and Moorgate station and this is what happened.
Journey 1 – Southbound
I arrived at the bus stop and after five minutes a 141 bus arrived.
But it was full and didn’t open the door to let any of the waiting six passengers board.
After another three minutes, another 141 bus arrived and we squeezed on.
But there wasn’t any seats left and I stood all the way to Moorgate.
Journey 2 – Northbound
I only had my breakfast and as I had things to do at home, I returned fairly quickly after finishing my breakfast.
Partly, this was also because a 141 bus turned up with some seats available.
But it was a lot closer to capacity, than Northbound buses at about the same time last week.
Journey 3 – Northbound
My third journey started at about four in the afternoon, after I’d been out to take some pictures and buy a few food items in Marks and Spencer.
I had to wait seven minutes for a 141 bus and as there was a 76 bus a couple of minutes in front of it, I took that, with the intention of changing halfway.
I was able to get a seat.
In the end, the 76 bus got stuck in traffic and I walked to my intended change stop and waited there for the 141 bus, which was without a seat, so I stood for three stops to home.
It was one of the slowest journeys, I’d had between my house and Moorgate station.
Day 2 – February 7th – 2023
I arrived at the bus stop and found a lady, who had been waiting for an hour-and-a-quarter.
I had no problem coming home, as I went to Liverpool during the day and got a taxi back from Euston.
Day 3 – February 8th – 2023
Perhaps, they’d heard our pleas, but a bus turned up after a couple of minutes with plenty of spare space.
I even got a seat.
Going home, at about 10, there wasn’t a spare seat.
Revenue per bus, is certainly rising.
Conclusion
On the evidence of the first three day, it appears that there is not enough capacity without the 21 bus.
World’s First Offshore Wind Farm Using 16 MW Turbines Enters Construction In China
The title of this post, is the same as that of this article on the offshoreWIND.biz.
This is the sub-heading.
China Three Gorges Corporation (CTG) has started construction of the second phase of its offshore wind farm Zhangpu Liuao. The project will be both China’s and the world’s first wind farm to comprise 16 MW wind turbines.
I hope the Chinese have done all their calculations, research and testing. The dynamics of large wings are tricky and there are a lot of square law factors involved. I’d always be worried that at a particular wind speed a dangerous vibration will be setup.
How many Chinese engineers have seen videos of Galloping Gertie?
As the video says, no one was injured or killed, when the Tacoma Narrows Bridge fell into the river, but we nearly had a very similar disaster in the UK. I used to work at ICI in Runcorn and at the time, I lived in Liverpool, so every day, I went to work I crossed the Silver Jubilee Bridge twice.
One day, after a party in Cheshire, I even got so drunk, I had to stop the car on the bridge and was sick into the Mersey. It was before C and myself were married and she always claimed she nearly called the marriage off, after the incident.
But have you ever wondered, why that bridge is a through arch bridge rather than a suspension bridge as over the Forth, Hmber and Severn, which were all built around the same time?
Wikipedia has a section, which describes the Planning of the bridge.
The new bridge had to allow the passage of shipping along the Manchester Ship Canal. Many ideas were considered, including a new transporter bridge or a swing bridge. These were considered to be impractical and it was decided that the best solution was a high-level bridge upstream from the railway bridge. This would allow the least obstruction to shipping and would also be at the narrowest crossing point. The first plan for a high-level bridge was a truss bridge with three or five spans, giving an 8 yards (7 m) dual carriageway with a cycle track and footpaths. This was abandoned because it was too expensive, and because one of the piers would be too close to the wall of the ship canal. The next idea was for a suspension bridge with a span of 343 yards (314 m) between the main towers with an 8 yards (7 m) single carriageway and a 2-yard (2 m) footpath. However aerodynamic tests on models of the bridge showed that, while the bridge itself would be stable, the presence of the adjacent railway bridge would cause severe oscillation.
The finally accepted design was for a steel through arch bridge with a 10-yard (9 m) single carriageway. The design of the bridge is similar to that of Sydney Harbour Bridge but differs from it in that the side spans are continuous with the main span rather than being separate from them. This design feature was necessary to avoid the problem of oscillation due to the railway bridge. The main span measures 361 yards (330 m) and each side span is 83 yards (76 m).
But that misses out part of the story that I learned about at ICI.
I developed a very simple piece of electronics for ICI Runcorn’s noise and vibration expert. The equipment allowed the signals from two noise meters to be subtracted. This meant that if they were pointed in different directions, the noise generated by an object or piece of equipment could be determined.
The noise and vibration expert had tremendous respect from his fellow engineers, but his involvement in the design of the Runcorn bridge had elevated him to a legend.
The designers of the suspension bridge, that is detailed in the Wikipedia extract, presented their design to the ICI (Merseyside) Scientific Society.
The noise and vibration expert was at the meeting and questioned the design and said it would collapse due to oscillations caused by the presence of the railway bridge. He advised aerodynamic tests should be done on the bridge.
His back of the fag packet calculations were shown by tests to be correct and the bridge was built as a through arch bridge.
These pictures show the bridge.
They were taken from a train on the railway bridge.
Equinor And SSE Eye Green Hydrogen Production For 1.32 GW Dogger Bank D
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
SSE Renewables and Equinor, the developers of the Dogger Bank Wind Farm in the UK, are exploring two options for Dogger Bank D, the fourth wind farm the partners are looking to build as part of the development. These include using Dogger Bank D for electricity that would feed into the UK grid and/or for green hydrogen production.
This says to me, that depending on need, electricity from the Dogger Bank Wind Farms and D in particular, can be distributed in the grid or converted into green hydrogen.
- The article says that the electrolyser could become the UK’s largest green hydrogen project
- There will be plenty of hydrogen storage in the salt caverns at Aldbrough, which can currently store the equivalent of 320 GWh of electricity, It is currently being expanded to be one of the largest hydrogen stores in the world according to this page on the SSE web site.
- There are currently two gas-fired power stations at Keadby and they will in a few years be joined by a third, that will be fitted with carbon-capture and a hydrogen-fueled power station.
The various wind farms, power stations and gas storage on Humberside are growing into a very large zero-carbon power cluster, with an output approaching six GW.
Any shortfall in wind output, could be made-up by using the Keadby 3 gas-fired power station with carbon capture or the Keadby hydrogen power station.
Conclusion
Humberside is getting a cluster of power stations and wind farms, that can produce almost twice the electricity of Hinckley Point C nuclear power station.
The Anonymous Widower 