My partner, John Taylor, who has died from cancer aged 74, was a leading figure in the field of community, rural and accessible transport. He made practical improvements in the lives of many people affected by privatisation, poor planning and reduced public funding of transport services.

While volunteering in Manchester in the 1970s John found minimal resources available for those who needed help to access his community buses – makeshift steps and ramps of milk crates and wooden planks were the norm. Plugging this gap became the foundation of his work.

He co-founded Manchester Community Transport (MCT) and in 1984 was founding director of Community Transport Services, later Community Transport Association UK (CTA), the national advisory body for transport-related charities. In the 90s he was instrumental in devising MiDAS (the Minibus Driver Awareness Scheme). In 1994 MiDAS was adopted nationally as a training scheme for volunteer minibus drivers; 30 years later, CTA UK issued its one millionth driver assessment certificate.

Born in Cambridge, John was the youngest of three children of Reginald Taylor, a civil servant, and his wife, Winifred (nee Stamford). The family moved to south London when John was a few weeks old. He was a gifted student at Whitgift school, Croydon, where his love of a challenge and wide open spaces led him to embrace mountaineering and climbing. He subsequently climbed in the UK, the Alps, Pyrenees and Himalayas; his final “big” expedition was an ascent of Ama Dablam, in Nepal, in 2007.

In 1971 he went to New College, Oxford, to study philosophy, politics and economics, followed by a year as an articled clerk in London, with the intention of pursuing a legal career. He then moved to Manchester to do postgraduate study in the sociology of law at Manchester University and stayed in the north for the rest of his life. Voluntary jobs led him into the transport sector, first with MCT and later as a freelance transport consultant, which is when I first met him, working together in Levenshulme.

We moved to Lancaster in 1995, and around this time John became co-director of the TAS (Transport Advisory Service) Partnership. He would often take on far too much and his reports were invariably delivered at the last minute. But once finished, he loved to communicate his ideas; his colourful shirt and tie combos gave him a standout presence during presentations.

Outside work, he enjoyed his vast music collection, which covered classical, jazz, blues and his beloved Grateful Dead. When the children expressed interest in Meccano, he drove to Hampshire to collect a huge quantity bought on eBay.

A loyal fan of Morecambe FC, he was active in the Shrimps Trust supporters’ society, leading the post-match litter-picking team and helping them acquire MiDAS certification for their away travel.

He is survived by me, our sons, Robin and Jonathan, his stepson, Ashley, and his sister, Fran, and brother, Francis.

London’s mayor has called for a cap on the numbers of robotaxis on its streets, with the UK government poised to allow fully driverless vehicles to operate in the capital.

Sadiq Khan said politicians had failed to “grasp the pace of change” from the technology, which could threaten jobs and increase congestion in the city, and questioned whether the rules for autonomous cars were fit for purpose.

His comments came after Chinese robotaxis, now being tested in London, were unveiled by Freenow by Lyft, a rival to Uber.

In September Uber started offering limited passenger services in Wayve’s self-driving cars, albeit with a safety driver in the front seat, under licence from Transport for London (TfL).

Freenow by Lyft is hoping to launch fully driverless Baidu robotaxis as early as next year, under a national licensing scheme.

However, the companies, as well as Waymo – which operates robotaxis in San Francisco and other US cities – are primarily focusing on London and Khan said the city needed to be able to limit the rollout.

“What we don’t want is a situation where there’s a big bang without proper regulation in place. We’ve got to make sure the regulation is fit for purpose before we have a mass rollout of things like automated vehicles,” said Khan.

He added: “I think the pace of change when it comes to tech and innovation has not been fully grasped by politicians. There’s got to be incremental movement when it comes to things like robotaxis or automated vehicles.

“We’re lobbying the government for TfL, for London, to have more powers than it currently has on things like automated vehicles.

“There are big questions that haven’t been answered yet: what impact will this have on air quality, on congestion, on those people whose livelihood is being a private hire vehicle driver or a black-taxi driver.”

Drivers’ unions have held protests at the London HQs of Wayve and Waymo in recent weeks, with many Uber drivers fearing for their future.

Khan added: “Is there going to be a cap? At the moment there’s no cap on the number of private hire vehicles or taxis. We’ve lobbied for those powers as well.

“London isn’t San Francisco. We’re a city of almost 10 million, 400 villages, narrow roads, and it’s really important to get this right.”

Under current regulations for fully autonomous vehicles, TfL can only give or refuse consent for their use within London and not manage or license robotaxi services, making the capital’s authorities somewhat less enthusiastic than ministers to accelerate towards the new technology.

However, Freenow by Lyft said the UK’s national framework for driverless cars was an important factor.

Danny O’Gorman, UK and Ireland general manager, said it was “great news for us to really invest in the market. But in terms of how it’s going to be regulated, once the service is up and running, that’s something that still needs to be ironed out.”

O’Gorman said the company was working closely with TfL and “wanted to do things the right way”. About 24 autonomous Baidu Apollo Go vehicles are being tested in the London borough of Brent.

The spacious Chinese cars, which incorporate a massage seat and a built-in touchscreen in the back for passengers, are in fully autonomous service in cities in China and the UAE, and appeared to be handling the streets safely in a test drive in October for the Guardian.

But many test trips still require human intervention, with roadworks proving difficult. For autonomous vehicles (AVs), “an interesting challenge in London is following the rules of the road”, when many drivers ignore them, O’Gorman said: “You get beeped at a lot for following the speed limit.”

Freenow by Lyft is promising a purpose-built AV depot in the UK. O’Gorman said a large proportion of displaced taxi drivers could be employed there in remote operating and servicing jobs.

The company has traditionally worked with black cabs and, he said: “The larger risks to that industry are the driver age profile: two-thirds are over 50 and they’re retiring, and the vehicle’s too expensive.

“AV is not going to be really competing in that space and it’s going to take a long time for us to scale up to vehicle numbers that threaten anything to do with that.”

Passengers travelling on some of Great Britain’s busiest railway lines at Christmas have been warned of significant disruption from 10 days of engineering works.

Work will close London’s Paddington station – affecting intercity trains to the west of England and Wales until January – as well as Birmingham New Street, the UK’s busiest station outside the capital, for five days over the holiday period.

Passengers travelling between London, north-east England and Scotland will have to negotiate the part closure of the east coast mainline on Christmas Eve. Direct trains from the capital to parts of Essex and Norfolk will also be cut for much of the festive period.

Network Rail said most routes would still stay open and that the Christmas period, when train services generally stop for 25 and 26 December, remained the best time to conduct essential works.

Engineers hope to use the quieter festive days to carry out about £152m of works to improve reliability and capacity.

The biggest engineering work is expected on the lines leading into London Paddington, including replacing a junction near Slough. Most Great Western services to Wales and the west of England will start and finish at Reading, with some services diverting around Oxford to London Euston, from 27 December until 4 January.

The work also means Elizabeth line services west of Paddington and Heathrow Express services will not resume after Christmas until 31 January.

Birmingham’s main station, New Street, will be closed from the start of Christmas Eve until 29 December to replace overhead power supplies. No trains will stop or pass through, with rail replacement buses serving the city centre.

Passengers using east coast mainline services run by LNER and other operators may wish to avoid travel on Christmas Eve. Work at Doncaster means trains between London, north-east England and Scotland will be partly replaced by rail replacement buses from Newark to York, adding two hours to journeys.

The Great Eastern mainline out of London Liverpool Street will be closed for 10 days from Christmas Day for track replacement in east London, meaning no Greater Anglia or Elizabeth line rains will run through the area, with no direct trains from Norwich to London.

TransPennine services between Leeds and Manchester will be slowed for six weeks from Christmas Day with the closure of Huddersfield station.

Network Rail’s group director, system operator, Anit Chandarana, said: “Christmas is a time when many people want to be with family and friends, and most of the railway will be open to help them get there. We have worked with train operators to keep services running wherever we can on the busiest travel days and to provide alternative journey options where work affects the usual route.

“We are sorry that some passengers will face disruption. The days between Christmas and new year are by far the quietest of the year and give us the best opportunity to complete major projects such as the power supply upgrades at Birmingham and Paddington. Our teams will do everything they can to keep people moving, and we urge passengers to check their journeys before setting off.”