2 hours ago, Jumbo1968 said:

There must be a load of colour blind people in Thailand as many don’t know the difference between red and green.

8% of males (roughly 1 in 12) are colourblind. That's equivalent to one player in every football (soccer) team. So colourblindness is common amongst men.

"Colourblind tests for driving licenses are primarily required in select Asian nations, most notably Thailand, which tests for red, green, and amber color recognition. Other countries with restrictions include Brunei, Cambodia, Indonesia (commercial), Laos, Malaysia (commercial), and Myanmar. Most Western countries do not mandate this test."

Driving tests I did in the UK and Australia had no colourblind test.

I am colourblind - red/green - but have never had a problem driving here and clearly seeing and differentiating red, yellow and green lights.

In the colourblind test for 2 years and 5 years driving licence here, I had huge problems with the colour peripheral test (put your chin on a bar, colour lights to the side) but the ladies in charge passed me (took pity on me).

My son renewed his licence recently (for 5 years) at Bangpu. They now have a different machine for colourblind testing (than the chin one i used): lights of red or yellow or green come on randomly and you have to press a red or yellow or green button to match the coloured light. I'm sweating already!

1 hour ago, paahlman said:

People under the age of 50 can now start renewing online starting June of this year. It won't help anyone over age 50, but queues and waiting times should be reduced with fewer younger people renewing in person.

Renewing at Taling Chan is better than at Chatuchak. Shorter lines. No foreigners.

under 55 i read.. though i might be wrong.

I'm not sure that will include foreginers due to the 'proof of address' requirement.

Thai's have their national ID cards with a chip and biometrics that link digitally - the medical checkup results will be linked to that online... we non-Thai's don't have that - so my take is we'll continue the renewal in person as we always have.