English: Diagram of MacArthur Maze (East Bay Distribution Structure), the eastern end of the San Francisco-Oakland Bay Bridge, as originally completed in 1936. Splits (Sx) and Merges (Mx) are shown. Drawn from aerial photograph.
Traffic to the Bay Bridge:
Westbound (WB) from 38th St (MacArthur Blvd): M3-S2-M4, e.g., enters structure at merge with NB Cypress Ave (M3), avoid split to Eastshore Freeway (S2), merges with SB Eastshore Freeway (M4)
NB from Cypress: M3-S2-M4
SB from Eastshore: S1-M4
Traffic from Bay Bridge:
EB to 38th St: S4-M2-S3
SB to Cypress: S4-M2-S3
NB to Eastshore: S4-M1
Avoid Bay Bridge:
NB: M3-S2-M1
SB: S1-M2-S3
Note the interchange does not provide for travel between Cypress and 38th/MacArthur directly. The portion of the structure between M3-S2 and M2-S3 is called a weaving lane, so named for the maneuvers that NB/SB traffic between Eastshore and Cypress or WB/EB traffic between Bay Bridge and MacArthur must take - merge with traffic, then move to the left lanes to continue travel. These weaving lanes were eliminated in 1955.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.