EAST LOS ANGELES INTERCHANGE OPERATION STUDY

THE PERFORMANCE IS DESCRIBED OF PORTIONS OF THE EAST LOS ANGELES INTERCHANGE AS AFFECTED BY CHANGES IN STRIPING OF THE MERGING AREAS. THIS INTERCHANGE HAS AN AVERAGE DAILY TRAFFIC OF ABOUT 320,000 VEHICLES AND EXPERIENCES OPERATING DIFFICULTIES RESULTING IN LARGE DELAYS TO TRAFFIC. PAVEMENT MARKINGS AND RAISED BARS WERE USED TO CHANNELIZE THE MERGING AREAS INITIALLY. A BEFORE AND AFTER STUDY WAS CONDUCTED TO EVALUATE THE EFFECTS OF PROPOSED CHANGES IN ATTEMPTING TO EQUITABLY DISTRIBUTE DELAYS. AERIAL PHOTOGRAPHY, GROUND COUNTS AND FLOATING CAR RUNS WERE USED TO OBTAIN DATA TO EVALUATE THE OPERATION. COMPARISON OF THE CONDITIONS INDICATED THAT CHANNELIZATION CAN BE DETRIMENTAL, IF NOT PROPERLY DONE, STRIPING THAT IS LESS RESTRICTIVE CAN MORE EFFECTIVELY DISTRIBUTE DELAY THROUGHOUT THE TRAFFIC STREAMS, AND THE USE OF AERIAL PHOTOGRAPHY IS A PRACTICAL MEANS OF EVALUATING THE EFFECTS OF GEOMETRIC CHANGES ON TRAFFIC OPERATION.

• Supplemental Notes:
  • Hpr, State C-3-1
• Corporate Authors:

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914
• Authors:
  • NEWMAN, L
  • Johnson, R T
• Publication Date: 1966-11

Subject/Index Terms

• TRT Terms: Aerial photography; Average daily traffic; Bars (Building materials); Before and after studies; Highway operations; Interchanges; Merging traffic; Performance; Road markings; Striping; Traffic; Traffic delays
• Uncontrolled Terms: Change
• Old TRIS Terms: Channeling; Ground count; Traffic marking
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00224842
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS
• Created Date: Jan 23 1994 12:00AM