rubbernecker
He does not encourage rubbernecking or autograph hunters.
There was a strange mix of heartfelt sympathy and car crash rubbernecking.
Sudden tragic death can inspire emotional rubbernecking.

SMART Vocabulary: related words and phrases

On the road: accidents involving vehicles
anti-collision
bird strike
brake
bump
car crash
car wreck
collide with someone/something
fender bender
overshoot
pile (something) up
plough into something/someone
post-crash
roadkill
RTA
rubbernecker
run someone/something down
sideswipe
smash
spin
stack

You can also find related words, phrases, and synonyms in the topics:

Using the eyes

rubbernecking | American Dictionary

rubbernecking
noun[ U ]
us/ˈrʌb·ərˌnek·ɪŋ/
the act of slowing down while driving to look at something interesting, esp. an accident:
There are delays due to rubbernecking at the scene of the accident.