Hong Kong International School is pressing ahead with plans to require pupils to travel to school by private bus, not cars, despite opposition from some parents.
Students living nearby will be allowed to walk to school, but all others will have to take the bus and pay for it.
Objecting parents say the measure is unnecessary and will add to the costs of sending their children to the school, where total annual fees range up to HK$210,900.
But the school's communications and public relations manager, Arlene Vermylen, said HKIS believes mandatory busing is the best option to ease the rush-hour gridlock around the school.
The school has proposed constructing a multimillion-dollar, "state-of-the-art" facility for its lower primary division on the site of the existing campus. It has faced stiff opposition from local residents, who worry that the new building could block views from their homes and contribute to traffic congestion in the area.
"As we worked to move the lower primary redevelopment project forward, it became clear that the heavy traffic at our Repulse Bay campus had been an ongoing issue for many years," Vermylen said. "The situation presents environmental and safety concerns as well as difficulty for our neighbours."