An airport and its region have a mutual interaction. Thus, the airport's performance is crucial for its region. Moreover, airport's performance is influenced by air transport network. The measurement of the quality and capacity of the air transport network is multifaceted. The study assesses an airport's network in terms of its type, accessibility, and connectivity. It focusses on 12 Tier-II Indian cities having medium-hub international airports because of their huge growth potential and under-addressed assessment. Furthermore, it is in coherence with the current policies of boosting regional air connectivity. Specific analyses for Tier-II cities' airports is important as a comparison with the bigger metropolises will be skewed. This exploration puts special emphasis on their relationship with the Tier-I cities as the connectivity of Indian airports is majorly complementary than competitive. Measures used for assessment are concentration indices, graph theory-based connectivity and accessibility indices (shortest path length and quickest time length), and partial accessibility indicators (daily accessibility, potential indicator, location indicator, and network efficiency). Modifications and synthesis of partial indicators are also attempted. Annual data sets for the financial year 2017-18 and real-time data from 25-July 31, 2018 are used, and the analysis was carried out from April-August 2018. The study identifies future potential (hubs/ feeders) among the Tier-II cities' airports and proposes to align policies accordingly. The results illustrate the need for more strong hubs in northern India and reveal the potential of Amritsar, Calicut, and Trichy of becoming future regional hubs.
