Source: Massachusetts Driver’s Manual, Revised 4/2017 [4.3 Mb, pdf]. Chapter 4: Rules of the Road [Chapter 4]
The Danger of Open Doors to Bicyclists [p.109 only] Please note: The above reproduction is a png image. Use the linked documents for pdf & digital text copy. The diagram* is adapted from the Cambridge Street Code – Rules & Etiquette for Getting There Together (2016), p. 9. Credit: Marie Macchiarolo, graphic artist.