Part 3 - Metro Gold Line Foothill Extension

Noise and Vibration Technical Report: Metro Gold Line Foothill Extension, Azusa to Montclair
July 2012
Page 6.4-116
Indoor Vibration Measurements
LSTM measurements were taken indoors at eight residences to assist in estimating the difference between
outdoor and indoor vibration levels including any amplification from floor resonances. The LSTM and
coherence results from those indoor measurements and the nearest outdoor measurement are shown in
Figure 43 through Figure 50. The addresses of the indoor measurements are:
• 520 Cornell Drive, Arcadia (second story MFR)
• 1614 Unit D Mayflower Avenue, Monrovia (second story MFR)
• 1320 Three Ranch Road, Duarte (single story SFR)
• 824 Unit 22 Pasadena Avenue, Azusa (second story MFR)
• 412 East Lemon Avenue, Glendora (second floor, rear unit in MFR; vibration site V-13)
• 444 North Amelia Avenue Unit 31F, San Dimas (second floor unit in MFR; vibration site V-15)
• 949 Arrow Highway Unit 2, Claremont (first floor of unit in MFR; vibration site V-19)
• 115 North Mountain Avenue, Claremont (second floor corner unit of MFR; vibration site V-20)