2. CHALLENGES AND RESTRICTIONS
TEHRAN FACE
• “Air Inversion” in cold seasons postpones
air circulation and as a result the polluted
air stays in the lower layers of the air
• Partial private Operation: government set
s fares, private sector takes all risks
• Poor availability of Services throughout t
he City
• Poor Integration with other Public and S
emi-Public services
• Poor service quality: decreasing patronag
e
• Low fares: unable to renovate old an poll
uting fleet
• On board cash payment: revenue losses
• Weak supervision, monitoring and control