The pedestrians HIC value does not exceed 1000 which is safety limit when the speed is lower than 60 km/h, on condition that the vehicle impacts with pedestrians' lateral body parts with low-speed after braking measures are taken, and pedestrians will not be hit in the head.
Periodic gait width alteration ceased when the pedestrian's lateral forcing frequency was matched to the base oscillation frequency, explained by stabilisation of the phase relationship between the forcing and oscillation frequencies.
When these coupled vibration modes are excited by walking pedestrians, excessive lateral vibration can be induced.
In this paper, a comprehensive review of studies related to pedestrian-induced lateral vibrations of footbridges is provided, primarily focusing on studies published within the last decade.
The subject of this paper pertains to the contentious issue of synchronisation of walking pedestrians to lateral structural motion, which is the mechanism most commonly purported to cause lateral dynamic instability.
In the past decade, several researchers have studied the phenomenon of excessive pedestrian-induced lateral vibrations and full-scale measurements of various bridges under crowd loading have been carried out.
The earliest scientific descriptions of excessive pedestrian-induced lateral vibrations are dated back to the 1970s, but it was not until the beginning of the new millennium that bridge engineers fully comprehended the potential negative effect of pedestrian crowds on long-span footbridges.
Pedestrian-induced lateral vibration of footbridges has been described (Fujino et al. 1993; Dallard et al. 2001).
This force harmonic, induced by a walking pedestrian, resonates with lateral deck motion, irrespective of the pedestrian׳s pacing frequency.
In contrast to many other models of lateral pedestrian loading, synchronisation with the bridge motion is not involved.
