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Mark D Barry (FAcSS)

@swalesmetroprof.bsky.social
3.5K followers 2.5K following 961 posts

Stuff (Physics, IT, biotech, transport) in Cardiff Manchester London EU & US. South Wales Metro since 2010 Prof Practice in Connectivity cugeogplan.bsky.social #cardiff #metro #transit #tod www.cardiffmetro.wales www.linkedin.com/in/mark-d-b

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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 19h
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 04/10/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 03/10/2026
I've just written to UK and Welsh Government Transport and Finance Ministers setting out what I think are the rail enhancement priorities for Wales to 2030/31 that UK Gov can /should fund... They have £14Bn after all! Lets see something in the Healey budget! swalesmetroprof.blog/2026/10/03/w...
swalesmetroprof.blog
Wales Rail Enhancement Priorities for UK Government, October 2026.
A copy of my letter to UK Government and Welsh Government Minister re my view of Wales rail enhancement priorities to 2030/31
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 03/10/2026
I've just written to UK and Welsh Government Transport and Finance Ministers setting out what I think are the rail enhancement priorities for Wales to 2030/31 that UK Gov can /should fund... They have £14Bn after all! Lets see something in the Healey budget! swalesmetroprof.blog/2026/10/03/w...
swalesmetroprof.blog
Wales Rail Enhancement Priorities for UK Government, October 2026.
A copy of my letter to UK Government and Welsh Government Minister re my view of Wales rail enhancement priorities to 2030/31
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 23/09/2026
The new Welsh Plaid Cymru Government has been in post now since their Senedd victory in May 2026. So now perhaps, time for me to opine on their transport priorities! swalesmetroprof.blog/2026/09/23/w...
swalesmetroprof.blog
Welsh Government Transport Priorities Sep 2026?
The new Welsh Plaid Cymru Government have a had a few months to bed in since their Senedd victory in May 2026. Now perhaps time for me to opine on their transport priorities for the next few years&…
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 23/09/2026
The new Welsh Plaid Cymru Government has been in post now since their Senedd victory in May 2026. So now perhaps, time for me to opine on their transport priorities! swalesmetroprof.blog/2026/09/23/w...
swalesmetroprof.blog
Welsh Government Transport Priorities Sep 2026?
The new Welsh Plaid Cymru Government have a had a few months to bed in since their Senedd victory in May 2026. Now perhaps time for me to opine on their transport priorities for the next few years&…
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 06/09/2026
Morning
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 01/08/2026
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Dr. Lucky Tran @luckytran.com · 30/08/2026
“Why didn’t scientists warn us?”
Newspaper clipping:

Thr Rodnen & Otamatea Times
WAITEMATA & KAIPARA GAZETTE
PRIOE~10s perannum in adrance
WARKWORTE, WEDNESDAY AUGUST 14, 1912
3d per Copy.
Science Notes and News.
COAL CONSUMPTION AFFECT.
ING CLIMATE.
The furnaces of the world are now
burning about
2,000,000,000 tons of
coal a ycar.
When this is burned,
uniting with oxygen, it adds about 7,000,000,000 tons of carbon dioxide to the atmosphere yearly. This tends to make the air a more effective blanket for the carth and to raise its temperature. The effect may be considerable in a few centuries.
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 18/08/2026
1/3 Our current political & economic models and ecosystems appear incapable of addressing the global challenge and existential risk of human caused climate change. PS we need to go beyond net zero. #climateemergency cardiffmetro.wales/3-why-metro-...
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 18/08/2026
1/3 Our current political & economic models and ecosystems appear incapable of addressing the global challenge and existential risk of human caused climate change. PS we need to go beyond net zero. #climateemergency cardiffmetro.wales/3-why-metro-...
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Saganism @sagan.bsky.social · 14/08/2026
41 years ago, Carl Sagan gave a clear and elegant explanation of the science behind global warming.
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 13/08/2026
On reflection and after a bit more digging and talking I am putting my hand up - my assessment re Caerphilly Interchange was wrong. Here's my update (I blame the heat!) swalesmetroprof.blog/2026/08/13/c...
swalesmetroprof.blog
Caerphilly Interchange…
Some reflections from me after my comments re the proposed new Caerphilly station last week. I got some things wrong…so hands up!
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 10/08/2026
Morning.....a mild provocation to start the week>>>
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 09/08/2026
Are the rail schemes in development/delivery at Caerphilly Station, Tenby and Abertillery really the best VfM schemes to have progressed...? swalesmetroprof.blog/2026/08/09/c...
swalesmetroprof.blog
Caerphilly Station, Tenby & Abertillery extension…. are these the best VfM schemes?
Do some of the committed PT schemes in Wales lack a robust VfM case (eg Caerphilly Station, Tenby Station, Abertillery Extension, etc) preventing some other better VfM schemes from progressing?
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Doug Aoki 青木定夫 @nantanreikan.bsky.social · 09/08/2026
The degree of stupidity it took for someone to vote for this...
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 09/08/2026
Are the rail schemes in development/delivery at Caerphilly Station, Tenby and Abertillery really the best VfM schemes to have progressed...? swalesmetroprof.blog/2026/08/09/c...
swalesmetroprof.blog
Caerphilly Station, Tenby & Abertillery extension…. are these the best VfM schemes?
Do some of the committed PT schemes in Wales lack a robust VfM case (eg Caerphilly Station, Tenby Station, Abertillery Extension, etc) preventing some other better VfM schemes from progressing?
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bluevoter24.bsky.social @bluevoter24.bsky.social · 08/08/2026
Writers can get a bit carried away. Or not. #cinema
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ebisback.bsky.social @ebisback.bsky.social · 09/08/2026
Truth! Release the Epstein files and lock them up!
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 09/08/2026
River Taff....like a mirror this morning...
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 01/08/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 01/08/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 01/08/2026
Good piece from Des..... Will @andyburnham.bsky.social @ukgovernment.bsky.social @skinnock.bsky.social etc take notice?
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Jon Burke🌍 @jonburkeuk.bsky.social · 01/08/2026
The same street in Levenshulme, Manchester, one hundred years apart. The private motor vehicle is an invasive species, which gradually crowds out and suffocates the rich social life of our cities. When cars don’t dominate the streets, life flourishes.
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David Rothkopf @djrothkopf.bsky.social · 30/07/2026
Disappointed in number of stories about Fauci that neglected to point out that the attacks on him are part of an on-going effort by Trump and GOP to distract from their catastrophic mismanagement of the pandemic, mismanagement estimated to have caused hundreds of thousands of unnecessary US deaths.
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 10/11/2025
For Wales, see England...... #rail #gbr #devolution
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 15/01/2026
Interesting chat-I think pre the latest seismic opinion poll in Wales (fyi Guto). No-one seems to want to really embrace the question of what Britain is and how it functions - because its clearly broken. This from 2021... swalesmetroprof.blog/2021/07/14/w...
swalesmetroprof.blog
What sort of Britain do we want?
July 2021… In February 2020, I published a blog “What sort of Wales do we want?” followed up by “The environment, Tax and Wales” earlier in 2021, and then augmented by a blog to counter the f…
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 16/01/2026
Yep. Fyi.... swalesmetroprof.blog/2025/10/19/t...
swalesmetroprof.blog
The Sodium Battery Revolution…
Sodium battery adoption will transform the energy generation and distribution market and radically reduce the cost of domestic electricity (ps maybe!)
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Jenny Rathbone @jennyrathbone.bsky.social · 16/01/2026
In the next 4 years we need to develop the Welsh energy storage systems to stop taxpayers paying companies ££££ not to generate electricity on windy days because the National Grid is overloaded. Mega batteries called energy boxes are one solution
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 10/03/2026
People need legal protection from hate crimes, persecution, racism, etc In so doing we must NOT legislate to limit criticism of any religion or state. Religion like any philosophical concept must be open to challenge, satire & yes ridicule. PS I have a phobia of most religions
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 28/05/2026
Ive just come across the 2019 @cavuhb.bsky.social patient access standards ...so I thought I'd update.....
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 20/06/2026
>>>>> #southwalesmetro #cardiffmetro #cardiffcrossrail #tod #cardiff #wales
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 29/07/2026
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 24/07/2026
3/3 We need "less" out of town car-based development and more Transit Oriented Development Come on #welshgovernment @transportforwales.bsky.social cardiffmetro.wales/11-why-we-ne...
cardiffmetro.wales
Why we need Transit Oriented Development
To complement the development of the South Wales Metro / Cardiff Capital Region Metro, we need more Transit Oriented Development
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 24/07/2026
2/3 Look at this.....Doh, Bridgend, Newport, Llanelli, Merthyr, etc all have city/town centres hollowed out by car based out of town retail sheds, office, etc. Its not hard, it really isn't! cardiffmetro.wales/10-the-clima...
cardiffmetro.wales
The climate emergency and car dependency
Car dependency leads to significant societal costs, necessitating reduced usage and improved public transport alternatives.
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Mark D Barry (FAcSS) @swalesmetroprof.bsky.social · 24/07/2026
1/3 Can anyone see anything wrong! FFS People. We need TOD not more car based out of town sprawl! People say we need to "fix the high street" (like Bridgend) whilst at the same time supporting this stuff @bridgend.gov.uk #welshgovernment #cardiffcapitalregion www.walesonline.co.uk/news/wales-n...
walesonline.co.uk
Welsh retail park McArthur Glen set for huge expansion with new shops
The Bridgend designer outlet could also see a new mezzanine floor plus landscaping
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