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Brian Caulfield

@briancaulfield.bsky.social

Professor in Transportation, Dept of Civil Engineering, Trinity College Dublin, Research in Transport, Public Transport, Transport Emissions & Climate Change. https://peoplefinder.tcd.ie/Profile?Username=CAULFIB

1,554 Followers  |  255 Following  |  196 Posts  |  Joined: 10.11.2024  |  1.403

Latest posts by briancaulfield.bsky.social on Bluesky

It would be in direct contradiction to our climate laws & obligations, prolong car dependency, and be contrary to the 2022-2042 GDA Transport Strategy, not to mention the biodiversity impacts.

Unfortunately, after decades of underinvestment in the city, another road is not going to fix our problems

03.12.2025 12:55 โ€” ๐Ÿ‘ 6    ๐Ÿ” 2    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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M50 congestion can only be fixed through Government policy change, says TII Sean Oโ€™Neill says traffic on the motorway have supassed Celtic Tiger numbers

Building the eastern bypass is far from a short or even a medium-term solutionโ€”it would take 15-20 years in planning and construction and cost billions!

www.irishtimes.com/transport/20...

03.12.2025 12:55 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Four-year delay to major upgrade of Dart network 'flies in the face' of best practice It was hoped construction could begin on Dart+ South West next year โ€“ thatโ€™s now been pushed out to at least 2030.

www.thejournal.ie/dart-south-w...

29.11.2025 09:41 โ€” ๐Ÿ‘ 13    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

A major extension to the Dart network that's to serve new neighbourhoods in west Dublin has been delayed for at least four years.

The move has been described as "contrary to best international practice" by one transport expert.
www.thejournal.ie/dart-south-w...

29.11.2025 00:08 โ€” ๐Ÿ‘ 13    ๐Ÿ” 7    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0
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Removal of 2:1 ratio of spending on public transport vs roads Michael Fitzmaurice, Independent Ireland TD for Roscommon Galway and Professor Brian Caulfield from School of Engineering at Trinity College Dublin.

I discussed the removal of 2:1 ratio of spending on public transport vs roads on @rteradio1.bsky.social this morning

www.rte.ie/radio/radio1...

28.11.2025 15:10 โ€” ๐Ÿ‘ 9    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Delighted to see the Elgar Encyclopedia of Transport and Society published today.

I authored Chapter 56 which defines decarbonisation of transport.

It is great to be listed with my international peers in this encyclopedia.

www.e-elgar.com/shop/gbp/elg...

27.11.2025 15:38 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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The transport investment plan is out, it looks to fund all the projects we have come to know over the years.. No new investment in Luas, bar the 4km Luas Finglas line.

If you include the โ‚ฌ2bn for Metrolink the PT & Active travel vs Roads ratio is 1.4:1

assets.gov.ie/static/docum...

26.11.2025 16:44 โ€” ๐Ÿ‘ 10    ๐Ÿ” 2    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0
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My 4th year students present projects on decarbonisation of transport at 10am. They have lived experience in how far we have to come: I got a 7:20am email from a student whose 6:53am bus didn't arrive, meaning they won't make it for 10am. Happy World Sustainable Transport Day.

26.11.2025 08:15 โ€” ๐Ÿ‘ 7    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Legal challenge to MetroLink to cause 'inevitable delay' A judicial review of the planned MetroLink rail line for Dublin will result in an "inevitable delay" to the project, Transport Infrastructure Ireland has said, adding that it hopes that the matter wil...

The 2021 business case for Metro showed โ‚ฌ15.6bn in user benefits over 60 years.... every day our city doesn't have a Metro we forego โ‚ฌ700k+ in user benefits per day

Legal challenge to MetroLink to cause 'inevitable delay' www.rte.ie/news/2025/11... via @rte.ie

25.11.2025 16:11 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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MetroLink construction to require 8,000 workers and international firms, committee told Prof Brian Caulfield, Trinity College Dublin, on the latest about the new Metrolink in Dublin.

Full Morning Ireland interview is here: www.rte.ie/radio/radio1...

20.11.2025 13:41 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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MetroLink: โ€˜Olympic villageโ€™ could be built for project workers, says transport expert Accommodation housing some 8,000 workers could later be returned to State, TCD professor suggests

Just an idea..... two bids and all that....

www.irishtimes.com/transport/20...

20.11.2025 13:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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At a meeting on Friday I was reminded of how much work we need to do in Ireland to modernise and upgrade our existing rail network. Looking at the statistics, you can see how much work we need to do to even get to the EU average of approx. 57%.

16.11.2025 15:22 โ€” ๐Ÿ‘ 76    ๐Ÿ” 15    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 2
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Dedicated Metrolink Agency โ€“ will it deliver the much delayed transport link? Brian Caulfield, Professor in the School of Engineering at Trinity College Dublin

I joined Drivetime on RTE yesterday to talk about the new delivery agency for Metro. Hurdles in delivering the project are still ahead, but for the first time it feels like we are getting into the mind space of this is happening & lets get on with it. Call me optimistic

www.rte.ie/radio/radio1...

13.11.2025 08:43 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Excited to see the CONUNDRUM project featured in tonightโ€™s episode of โ€œ10 Things to Know Aboutโ€ฆโ€ on @rte.ie 1 at 8:30pm.
@tcddublin.bsky.social Engineering is proud to contribute through Prof @briancaulfield.bsky.social , Dr Conor Dowling & Dr Abhilash Singh.
#CONUNDRUM #RTร‰ #10ThingsToKnowAbout

10.11.2025 13:18 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Free Bus ร‰ireann? Could free Mamdani's free bus policy work in Ireland? In New York City, newly elected Mayor Zohran Mamdani campaigned on a platform of making buses free to make life in the city more affordable.

I joined @seanmoncrieff.bsky.social on @newstalkfm.bsky.social to discuss..

In New York City, newly elected Mayor Zohran Mamdani campaigned on a platform of making buses free to make life in the city more affordable. Would free public transport work in Ireland?

www.newstalk.com/news/buses-2...

05.11.2025 18:13 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Big infrastructure projects but who will build them? Brian Caulfield from School of Engineering at Trinity College Dublin

I joined @philipb-h.bsky.social earlier on the Today show on @rteone.rte.ie to discuss the volume of public transport projects to deliver in Dublin and how to deliver them

www.rte.ie/radio/radio1...

04.11.2025 18:15 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Transport 21 Plan Government announces plans to expand and upgrade the public transport network.

Lets hope in 20 years time we dont have videos like this of the current transport plans for our city, where we look back with regret because nothing happened......

www.rte.ie/archives/202...

01.11.2025 15:04 โ€” ๐Ÿ‘ 6    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Would free buses work in Dublin and ease traffic congestion? New York mayoral candidate Zohran Mamdani has tapped into frustration with cityโ€™s service by pledging to make it free

Nice article by Eoin Burke Kennedy in the @irishtimes.com today on free public transport

My 2 cents in the article "the money would be better spent on extending Luas lines and delivering new urban rail services in our regional cities."

www.irishtimes.com/business/eco...

31.10.2025 08:05 โ€” ๐Ÿ‘ 10    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Extension of Luas line to Finglas granted permission and could be completed by 2031 The new line in Dublin is expected to cost about โ‚ฌ600 million

Great news, Luas Finglas joins Metrolink, 12 BusConnects corridors, DART+ West & South West on the list of Dublin public transport projects with planning permission ..... now for delivery

www.irishtimes.com/ireland/dubl...

30.10.2025 11:31 โ€” ๐Ÿ‘ 9    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Price rise on the tolls on our national roads Transport Infrastructure Ireland has announced a number of increases to tolls across the national road network from the 1st of January next year. For more on this Brian Caulfield, Professor of Transpo...

I spoke on @drivetime.bsky.social earlier on the planned toll increases

www.rte.ie/radio/radio1...

29.10.2025 19:40 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Delighted to see our policy brief on e-cargo bikes published by @seai-ie.bsky.social

www.seai.ie/sites/defaul...

24.10.2025 07:42 โ€” ๐Ÿ‘ 9    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Fantastic new research from @eiturbanmobility.eu on the benefits of bike share schemes

www.eiturbanmobility.eu/wp-content/u...

15.10.2025 15:17 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thank you

11.10.2025 08:47 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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What next after the Metrolink? | Newstalk โ€œWouldnโ€™t it be great if we could build rail lines as fast as roads?โ€ย  Planning permission...

My interview on @newstalkfm.bsky.social yesterday morning

www.newstalk.com/podcasts/hig...

11.10.2025 08:46 โ€” ๐Ÿ‘ 7    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Brian Caulfield: Now Metrolink is going ahead, whatโ€™s the next rail project for Dublin, Cork, Limerick and Galway? If Luas Finglas is delivered on time, there will have been a 15-year gap since the last Luas extension

Imagine if Ireland could lay rail tracks as quickly as it builds roads.... my article in the @irishtimes.com today

www.irishtimes.com/opinion/2025...

09.10.2025 11:24 โ€” ๐Ÿ‘ 36    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Situating the E-Cargo Bike in an Emergingย Cycling Network: A Qualitative Study In many low-cycling contexts, cycling is routinely marginalised in transport planning practice while, in everyday traffic interactions, cyclists are frequently disregarded as legitimate road users. E-...

๐Ÿ“ฃ New research just published. Thank you @seai-ie.bsky.social for supporting the work

To increase e-cargo bike uptake, we must focus on:

1. Network Planning & Safety
2. Maintenance & Surface Quality
3. Design & Exclusion

activetravelstudies.org/article/id/1...

06.10.2025 10:38 โ€” ๐Ÿ‘ 20    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
What Happens Next with the Metrolink? Professor in Transportation at Trinity College Dublin Brian Caulfield and economist Colm McCarthy join Will O'Callaghan to discuss what happens now the Metro...

I spoke joined Colm McCarthy and Will O'Callaghan to discuss Metrolink on the Last Word earlier

www.todayfm.com/podcasts/the...

02.10.2025 18:47 โ€” ๐Ÿ‘ 2    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Metrolink given green light by An Coimisiรบn Pleanala Permission has been granted for Dublin's long-awaited Metrolink project link Dublin city to airport.

After 3 years and 2 days

Metrolink given green light by An Coimisiรบn Pleanala www.rte.ie/news/2025/10...

02.10.2025 08:47 โ€” ๐Ÿ‘ 22    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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The NTA Household travel survey results for 2024 are out...

Mode share for driving is up and now higher than it was in 2012.

Cycling mode share has increased slightly on 2023

% of our trips to work are down 7% on 2017, the impacts of WFH & COVID

www.nationaltransport.ie/wp-content/u...

29.09.2025 12:36 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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