Agyrophobia
Abnormal and persistent fear of crossing streets, highways and other thoroughfares; fear of thoroughfares themselves.
Sufferers experience anxiety even though they realize that streets, highways and other thoroughfares pose no threat commensurate with their fear.</P> Formed from the Greek 'gyrus' (turning or whirling) and the Greek 'phobos' (fear).
The first letter, 'a,' is privative--that is, it creates a negative.
Thus, an agyrophobiac shuns or avoids the whirl of traffic.