141st APHA Annual Meeting and Exposition

Home Events & Meetings Annual Meeting Schedule & Program

Recorded Annual Meeting Presentations (RAMP) are now available for purchase.
Only $90 for presenters, $140 for registered attendees and $200 for non-attendees.

Online Program

Qingfeng Li

Johns Hopkins School of Public Health
Baltimore, MD
USA qili@jhsph.edu

5117.0 Evaluation of an interval-based speed enforcement system for road safety in China