iiinova — where your digital self keeps evolving

Jim Chisholm @chisholm4trail.bsky.social · 01/09/2026

In mid 70s @ TRRL worked good friend, 2 plan experiment 2 try & determine 'perceived cost of interchange' No bluesky money! He has sadly died, & I've 2 plan a trip to Lakes. I route with 2 rail changes at cost of 2 hrs time. 1 involves 0 min bus/rail (60min wait?)interchange. A boat trip looks good

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Jim Chisholm @chisholm4trail.bsky.social · 13/08/2026

This makes excellent reading, as does full report: victimscommissioner.org.uk/document/for... 18yrs ago, whilst cycling, I was hit from behind. Apparently my fault for being there! Driver not charged. Took much time for police to admit errors. A year later wrote: www.camcycle.org.uk/magazine/new...

victimscommissioner.org.uk

Forgotten victims: Barriers to justice following a road traffic collision - Victims Commissioner

Despite an estimated 29,896 people being killed or seriously injured on roads in England and Wales in the year ending

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Reposted by Jim Chisholm

Tom Flood @tomflood.bsky.social · 10/08/2026

free range.

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Jim Chisholm @chisholm4trail.bsky.social · 09/08/2026

Shelford 2 York on weekday morning: National Rail, LNER, & EMR give diff times, & diff changes, with none suggesting changing at Cambridge South, & only EMR allowing via Ely. Looks like Cross Country arrives P'bro at same min, of hr that York departs! When young & cross platform it could be done!

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Martin Rathfelder @rathfelder.bsky.social · 12/07/2026

What is Reform's policy on sycomore trees? Dangerous immigrants propagating themselves all over the place!

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Jim Chisholm @chisholm4trail.bsky.social · 02/07/2026

Given that 'inertia' causes most damage/injuries in crashes, and weight most road damage, Why not multiply the weight of a car (in tons) by maximum speed (kph) to give a quotient for Vehicle Excise Duty (Road Tax) for a year? Too low? Inertia is weight x speed squared! Would that be too high?

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Solve the School Run @solveschoolrun.bsky.social · 26/06/2026

"Car manufacturers have spent decades pushing large expensive cars at the expense of smaller models. After 25 years of relentless growth, our streets are dominated by oversized SUVs that cities simply weren’t designed for." Anna Krajinska of @transportenvironment.org

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Jim Chisholm @chisholm4trail.bsky.social · 24/06/2026

London’s ULEZ and T-charge linked to reductions in emergency hospital admissions. Need similar controls in all Urban Areas www.imperial.ac.uk/news/article... 8.1 % reductions in yearly trends for cardiovascular disease, 6.2% for respiratory disease and 3.1% for all cause related hospital admissions

imperial.ac.uk

London’s ULEZ and T-charge linked to reductions in emergency hospital admissions

New analysis from Imperial researchers has found that measures to cut air pollution from vehicles in central London are associated with a fall in hos...

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Jim Chisholm @chisholm4trail.bsky.social · 23/06/2026

I like this, and post: www.youtube.com/watch?v=JK0V... Although sometimes difficult, I try not to use words 'cyclist' & 'motorist' as it tends to imply 'mutually exclusive sets'. I drive & I ride a bike It was @rafe-s.bsky.social s.bsky.social decades ago suggested that. It can soften any division.

youtube.com

Why London Drivers Hate Cyclists (And Why They’re Wrong)

YouTube video by Human Human Stories

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Jim Chisholm @chisholm4trail.bsky.social · 22/06/2026

Clarence shot a film in Cambridge 10+years ago. Some of the LTNs there had already existed for 30 years. He filmed a 92 year old cycling thro one set of bollards but STOPPED filming just seconds before he turns and shouts 'I'm 92'. (@4.22) see: www.youtube.com/watch?v=9-p3...

youtube.com

Cambridge: Britain's Cycling Capital

YouTube video by Streetfilms®

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Jim Chisholm @chisholm4trail.bsky.social · 21/06/2026

There was a development ('big pharma'?) in Kent where all those who didn't use the car park got a benefit (Was 10min extra flexi-time?) So if you walked, took bus, or didn't drive you got benefit. ould do that for ALL those at NHS facilites, even if benefit were just a sandwich... Big pharma closed.

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Jim Chisholm @chisholm4trail.bsky.social · 18/06/2026

@pactsuk.bsky.social When I posted this I didn't make it clear that Cambridgeshire Constabulary has over the whole of Cambridgeshire issued zero NIPs for exceeding 20 limits in whole of 2024 @rafe-s.bsky.social @emilykerr36.bsky.social LA proposing speed humps on busy cycle routes as alternative!

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Jim Chisholm @chisholm4trail.bsky.social · 18/06/2026

@rafe-s.bsky.social @emilykerr36.bsky.social @emilykerr36.bsky.social @pippaheylings.bsky.social 20mph streets (1k bikes p/d) my Cambridgeshire village have an 85%of 30.5. Police say (via MP)"I can confirm that as a rule we do not enforce 20limits @20splenty.bsky.social say zero NIPS in '24. Help!

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Jim Chisholm @chisholm4trail.bsky.social · 13/06/2026

@walkwheelcyclet.bsky.social Can't @ategov.bsky.social Stop daft works on existing NCN route? 1k cycle trips per/day do R then L. Narrow shared use (30mph rd, 1.6m fence + blind corners). Most will use on road with 'critical width' lane + not flush, not 90deg crossing of inappropriate Dutch Kerb!

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Martin Rathfelder @rathfelder.bsky.social · 13/06/2026

The nuclear enterprise already consumes roughly a fifth of the defence budget — £12bn out of £60bn last year. Never been used. Why do we want to be a nuclear power? To defend our Empire? www.ft.com/content/c5af...

ft.com

The strategic dilemmas behind Britain’s defence spending mess

At the heart of the debate is not just how much the UK should spend on the military, but what types of threat it faces — and ultimately, its place in the world

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Tom Flood @tomflood.bsky.social · 11/06/2026

Not complicated

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Jim Chisholm @chisholm4trail.bsky.social · 06/06/2026

@oldtrotter.bsky.social So when an LA introduces speed humps 4.5m wide (with narrow gutters) on a two way road who gives way and should motors attempt an overtake?

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Jim Chisholm @chisholm4trail.bsky.social · 05/06/2026

It is the utter reliability of cycling that makes it quicker than driving. I can stay in bed longer if cycling the 5 miles to Cambridge station for a fast peak hour train to London than if I drove.

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Jim Chisholm @chisholm4trail.bsky.social · 04/06/2026

At CBC, consultant (cycling) late for my appointment! Saw my cycle bag, & asked 'Where did you park?' After40 yrs, I know hidden spots. His spot fenced off 4 works! Yet they are building more MSCPs, despite an 'on-site' Cambridge South railway station opens in days! CBC Needs 100s more cycle spaces.

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TallBikeGuy @thetallbikeguy.bsky.social · 29/05/2026

Great graph from Russell King via #BikeIsBest

A graph that shows the circular actions of widening roads, building free parking and designing roads for driver comfort all result in increrased congestion and roads becoming less safe.

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Jim Chisholm @chisholm4trail.bsky.social · 26/02/2026

@andy-cox.bsky.social Is limit+50% defined as 'excessive' & if 15% are over limit+50% is it reasonable to expect some police enforcement, even if only a 20mph limit? Source of info in public domain? I don't want to wait until Road Safety Strategy, & updates to 15yr old 'setting local speed limits'

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Jim Chisholm @chisholm4trail.bsky.social · 24/02/2026

@walkwheelcyclet.bsky.social I'm very disappointed as I emailed the trust week ago about serious issues with proposed changes on NCN 11. I've followed it with a call. No response. Isn't the proposed use of Dutch Kerbs not only inappropriate but dangerous? Bearing left at 12mph risks a serious fall!

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Jim Chisholm @chisholm4trail.bsky.social · 16/02/2026

Anyone seen the use of Dutch Kerbs across a side road where there is NO footway, or one on a long curve, where a side road bears off meaning you approach the kerb at 15deg. I could show you such a proposal. They and speed humps are about to be approved, and on the NCN

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Jim Chisholm @chisholm4trail.bsky.social · 07/02/2026

@rantyhighwayman.bsky.social Asking4Friend... Is this a safe/appropriate use of Dutch Kerbs (in purple). Bearing left on a falling gradient into Magog Way. Surely such kerbs should be crossed at near 90deg? Wouldn't it fail a Safety Audit...

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Jim Chisholm @chisholm4trail.bsky.social · 23/01/2026

@londoncycling.bsky.social Ask4friend... Is it good use of ££££ to put Dutch kerb & raised footway across entrance of side road with NO footway, or shared -use path on either side for over 50m? on minor road. Footway only on opp side. Is it even safe with wide bellmouth (cycles enter on skew not 90)

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Jim Chisholm @chisholm4trail.bsky.social · 20/01/2026

Lot in common with Water & Transport. Those with no meters have no incentive to reduce use, so others pay more than fare share. For motors, those without cars still pay for roads, & those driving excessive miles in heavy vehicles (4th power rule) trash & congest roads, so less safe for others

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