INDIANAPOLIS - For the fourth straight year, Indianapolis International Airport has earned a top honor in what's considered the world's premier passenger service recognition program. The Airports Council International named the Indy airport best in North America in its 2015 Airport Service Quality Awards.

Indianapolis International Airport also earned the honor in 2014, 2013, 2012 and 2010. The annual ACI ASQ awards are based on air traveler surveys at more than 300 airports around the world. Those surveys cover factors including airport staff, waiting areas and cleanliness.

The airport currently boasts more nonstops, 44, than at any time in the past decade. Executive Director Mario Rodriguez recently told Inside INdiana Business Television that travelers can expect "a Seattle announcement very soon."

Earlier this month, the Indianapolis Airport Authority Board delayed a vote on a proposed $500 million global brain health center and sports and entertainment development at the former terminal site.

The winners of the 2015 ASQ Awards Are:

Best Airport by Region (over 2 million passengers per year)

Africa 
First place: Mauritius
Second place (tie): Cape Town; Durban
Third place: Johannesburg

Asia-Pacific 
First place (tie): Seoul Incheon; Singapore
Second place (tie): Beijing; Mumbai; New Delhi; Sanya Phoenix; Shanghai Pudong
Third place (tie): Guangzhou Baiyun; Taiwan Taoyuan; Tianjin Binhai

Europe 
First place (tie): Moscow Sheremetyevo; Pulkovo; Sochi
Second place (tie): Dublin; Malta; Prague; Zurich
Third place (tie): Copenhagen; Keflavik; London Heathrow; Porto; Vienna

Middle East 
First place: Amman
Second place (tie): Abu Dhabi; Doha
Third place (tie): Dammam; Dubai; Tel Aviv

North America 
First place: Indianapolis
Second place (tie): Dallas Love Field; Grand Rapids; Jacksonville; Ottawa; Tampa
Third place (tie): Austin; Detroit; Sacramento; San Antonio; Toronto Billy Bishop

Latin America-Caribbean 
First place: Guayaquil
Second place: Quito
Third place: Punta Cana

Best Airport by Size 

2–5 million passengers per year 
First place: Jaipur
Second place: Lucknow
Third place: Guayaquil

5–15 million passengers per year 
First place: Sanya Phoenix
Second place: Tianjin Binhai
Third place: Hyderabad

15–25 million passengers per year 
First place: Seoul Gimpo
Second place: Wuhan
Third place: Denpasar

25–40 million passengers per year 
First place (tie): Mumbai; New Delhi
Second place: Taiwan Taoyuan
Third place: Shanghai Hongqiao

Over 40 million passengers per year 
First place (tie): Seoul Incheon; Singapore
Second place (tie): Beijing; Shanghai Pudong
Third place: Guangzhou Baiyun

Best Airport by Region (under 2 million passengers per year)

Africa: Upington
Europe: Skopje
North America: Portland
Latin America-Caribbean: Culiacan

Best Airport by Size and Region (new category)

Asia-Pacific 
2–5 million passengers per year: Jaipur
5–15 million passengers per year: Sanya Phoenix
15–25 million passengers per year: Seoul Gimpo
25–40 million passengers per year: New Delhi
Over 40 million passengers per year: Seoul Incheon

Europe 
2–5 million passengers per year: Sochi
5–15 million passengers per year: Pulkovo
15–25 million passengers per year: Dublin
25–40 million passengers per year: Moscow Sheremetyevo
Over 40 million passengers per year: London Heathrow

North America 
2–5 million passengers per year: Grand Rapids
5–15 million passengers per year: Indianapolis

Most Improved Airport

Africa: Nairobi
Asia-Pacific: Denpasar
Europe: Istanbul
Latin America-Caribbean: Kingston
Middle East: Dammam
North America: Saskatoon