SAN FRANCISCO-OAKLAND BAY BRIDGE TRANS-BAY BUS RIDERS SURVEY

THIS SURVEY WAS CONDUCTED TO DETERMINE IF AN EXCLUSIVE BUS LANE PROVIDED IN 1961 ON THE BAY BRIDGE CAUSED A SIGNIFICANT NUMBER OF PEOPLE TO CHANGE FROM AUTO TO BUS TRAVEL. THE FINDINGS ARE NOT DIRECTLY APPLICABLE TO THE QUESTION OF CAPACITY OF FREEWAYS WITH RESERVED LANES FOR BUSES BECAUSE THE BUSES SHARED A LANE WITH OTHER VEHICLES AT THE ACTUAL BOTTLENECK, THE 2-LANE APPROACH TO THE TRAFFIC SIGNAL AT YERBA BUENA ISLAND. ALSO, WE DID NOT DETERMINE HOW MANY BUS RIDERS SWITCHED FROM BUS TO AUTO TRAVEL DURING THE TEST PERIOD. THE STUDY INDICATED THAT PATRONAGE INCREASED 6 PERCENT FROM 1961 TO 1962, COINCIDING WITH THE INAUGURATION OF THE EXCLUSIVE LANE, BUT ALSO INCREASED 6 PERCENT FROM 1960 TO 1961, BEFORE THE EXCLUSIVE LANE WAS ESTABLISHED. THERE IS NO EVIDENCE THAT THE EXCLUSIVE BUS LANE CAUSED A MAJOR INCREASE IN BUS PATRONAGE OR A SIGNIFICANT REDUCTION IN AUTO TRAFFIC ON THE BRIDGE. THREE PERCENT OF THE BUS PASSENGERS INTERVIEWED HAD SWITCHED FROM AUTO TRAVEL DURING THE EXCLUSIVE LANE PERIOD. OF THESE, 38 PERCENT SAID THEY SWITCHED TO BUS TRAVEL BECAUSE IT WAS MORE CONVENIENT, AND 23 PERCENT SAID THEY DID SO BECAUSE THE BUS WAS FASTER. ONLY ONE OUT OF 239 FORMER AUTO USERS SAID SPECIFICALLY HE SWITCHED BECAUSE OF THE EXCLUSIVE BUS LANE. CHANGES IN PLACE OF EMPLOYMENT OR RESIDENCE CAUSED LARGE SHIFTS IN BUS PATRONAGE. TWENTY-THREE PERCENT OF ALL INTERVIEWED BUS RIDERS WERE NEW DURING 1962, BUT THE NET INCREASE IN PATRONAGE WAS ONLY 6 PERCENT AND THE SWITCHES FROM AUTO TRAVEL WERE ONLY 3 PERCENT. THE INCREASE /1962 OVER 1961/ IN THE NUMBER OF PEOPLE CROSSING THE BRIDGE IN AUTOS WAS GREATER THAN THE INCREASE IN BUS RIDERS, 533,000 BUS RIDERS ACCOUNTED FOR 46 PERCENT AND 636,000 AUTO USERS FOR 54 PERCENT OF THE TOTAL INCREASE. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; Tables;
  • Pagination: pp 169-182
  • Monograph Title: Origin and destination: Methods and Evaluation
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00240811
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Nov 18 1994 12:00AM