King Khalid International Airport


King Khalid International Airport (KKIA) is located in northern Riyadh, Saudi Arabia. Positioned 35 kilometers north of the city, the airport currently serves 13,000,000 international and domestic passengers. In addition to four traditional terminals, there is also a Royal Terminal for high-ranking officials and heads of state.

In response to an increase in passengers and need to modernize existing facilities, KKIA underwent a major reorganization and renovation plans. As a result, the General Authority of Civil Aviation of Saudi Arabia approved plans to expand the Terminal 5 facility. The terminal expansion is approximately 4,300,000 sf. and incorporates the new terminal building and several covered car parks including, public car parking, car rentals, and staff parking. All the car parks are within walking distance from the terminal curbside road and terminal entrances.

Hinman was contracted by Happold Safe & Secure to provide a blast vulnerability assessment for the Terminal 5 facility development. The purpose of this vulnerability assessment was to determine the capacity of the existing building design in response to air-blast loading effects due to potential explosive threat scenarios.

Hinman provided the blast vulnerability assessment to evaluate the capacity of structural and façade elements of the Terminal 5 facility in response to air-blast loading effects.


Together with Happold Safe & Secure, Hinman provided a blast vulnerability assessment. This evaluation assessed the capacity of structural and façade elements of Terminal 5 in response to air-blast loading effects. We evaluated the blast performance of the current building design under the identified design threats. In addition, Hinman provided design recommendations for incorporation into the project documents for improved blast performance. To assess the structure properly, we used the U.S. industry standard documents, Blast Protection of Buildings.

Our report provided the basis of design, analytical approach, a description of the building and site, and identified critical threat scenarios for the terminal. Additionally, it discussed the characterization of building performance through the description of damage types, injury severity, and building protection levels.