NIGHTTIME CONSTRUCTION WORK ON URBAN FREEWAYS

THE HEAVY VOLUME OF TRAFFIC ON FREEWAYS IN DISTRICT 07 CALIFORNIA DIVISION OF HIGHWAYS, HAS LED TO INITIATION OF NIGHTTIME CONSTRUCTION. TYPICAL NIGHTWORK HAS INCLUDED INSTALLATION OF RAISED PAVEMENT MARKERS, REMOVAL OF CABLE CHAIN LINK BARRIERS AND INSTALLATION OF DOUBLE-BLOCKED OUT METAL BEAM BARRIERS WITH ANTI-GLARE SCREEN, GROOVING OF PAVEMENTS AND PAVING OF ADDITIONAL LANES. ANALYSIS OF ACCIDENT RECORDS REVEALS FEWER ACCIDENTS OCCUR DURING NIGHT CONSTRUCTION PERIODS THAN DURING ORDINARY NIGHTS. MUCH OF THE SUCCESS IS ATTRIBUTABLE TO THE USE OF A MINIMUM 2000 FOOT TAPER FOR LANE CLOSURE (1000 FEET IS THE NORMAL MINIMUM). FOR BETTER NIGHTTIME DELINEATION THE TRAFFIC DEPARTMENT IS EXPERIMENTING WITH ILLUMINATED TRAFFIC CONES. EXPERIENCE INDICATES THAT SCHEDULING CONSTRUCTION ACTIVITIES AT NIGHT ELIMINATES TRAFFIC DELAYS AND IMPROVES TRAFFIC SAFETY.

• Authors:
  • Lee, C K
• Publication Date: 1969-3

Media Info

• Serial:
  • Traffic Engineering, Inst Traffic Engr

Subject/Index Terms

• TRT Terms: Barriers (Roads); Cables; Chains; Cones; Crash rates; Freeways; Glare; Highway delineators; Median barriers; Night; Pavement grooving; Pavements; Road construction; Road marking materials; Screens; Tapered traffic lanes; Traffic safety
• Uncontrolled Terms: Barriers
• Old TRIS Terms: Buttons; Converging sections; Delineators (Traffic); Taper; Traffic marking materials
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00218666
• Record Type: Publication
• Source Agency: Public Works
• Files: TRIS
• Created Date: Sep 28 1970 12:00AM