List of Articles Urban Centers Open Access Article Abstract Page Full-Text 1 - The Conceptual Model of Improving the Quality of the Environment in Urban Centers with Emphasizing on Policy of Transportation Demand Management Mansoureh Fouladi Hamid Majedi Hosein Zabihi Zahra Sadat Saeideh Zarabadi 10.30495/hoviatshahr.2022.40643.11371 Open Access Article Abstract Page Full-Text 2 - An Analysis of the Quality of the Functional Environment in the Central Area of Zanjan in the Face of the Covid-19 Epidemic Mohamad taghi Heydari Shahram Mohammadi Azim Ali Shai