On highway you should merge at highway speed, ie match the speed of vehicles on the highway

Meaning highways should be higher than 110 km / h, give and take 150 km / h?

If city roads then how?

Normal highway speed la, don't merge like turtle

I OK with normal speed, if law is 110km/h, give and take plus minus 20%.

If law is city roads speed is 70km/h then merging between 50km/h to 90km/h is perfectly acceptable.

I feel drivers in their middle age to early seniors (45-60) are the safest. Because their senses are still sharp enough for the road but they have lost their aggression and developed a natural sense of caution. Defensive driving is their default. I even see the same thing for moto riders.

I really sometimes wonder for these accident videos on tiktok, why are the drivers treating the roads like a race track or while on the road i see impatient cars cutting in and out only to arrive at the same time as me at the red light.  Lately I've been developing hesitation to cut to the right lane as every week that passes the cars on that lane seem to be going faster and faster.

On highway, on federal road, on residential road with only 1 single lane, on whatever roads, these kind of people just drive 20 kmph, regardless day or night, rain or shine... Cao cibai.

This is the ultimate reason KL jam i told you.

Kthxbye. Completed my rant. Please comment. Bye.