00204374

Component

https://onlinepubs.trb.or...Bproceedings/41/41-009.pdf

MANY PAVEMENT FAILURES CAN BE TRACED TO A LOSS OF SUPPORT BY THE ROADBED. THIS CONDITION IS OFTEN THE RESULT OF INADEQUATE DRAINAGE THROUGH HIGHWAY SHOULDERS THAT LOSE THEIR DESIRED PERMEABILITY WHEN WATER BECOMES TRAPPED BENEATH THE PAVEMENT. THIS PAPER PRESENTS A NEW METHOD OF TESTING THE DRAINAGE OF HIGHWAY SHOULDERS IN THE FIELD. THE TEST IS RAPID AND ENABLES THE OPERATOR TO OBSERVE VISUALLY THE ADVANCE OF A SATURATED MOISTURE FRONT THROUGHOUT A SHOULDER CROSS-SECTION BY NOTING THE LIGHTING SEQUENCE OF SMALL NEON BULBS ARRANGED IN A GRID ON A PANEL. THESE BULBS ARE ELECTRICALLY CONNECTED TO STEEL PROBES DRIVEN INTO THE SHOULDER AT INTERVALS ALONG ITS WIDTH. THE TEST AND THE EQUIPMENT WERE DEVELOPED WITH A FULL-SCALE LABORATORY MODEL OF A HIGHWAY SHOULDER, USING VARIOUS GRADATIONS AS THE SINGLE VARIABLE. SPECIAL GRAPHS WERE PLOTTED TO ENABLE AN OPERATOR TO GET A GENERAL IDEA OF THE PERMEABILITY OF THE MATERIAL IN A VERY SHORT TIME WHILE THE TEST IS IN PROGRESS. THE FIELD TESTS SHOW GOOD AGREEMENT WITH THE LABORATORY DATA. FURTHER FIELD WORK IS UNDER WAY ON MAJOR HIGHWAYS IN SEVERAL PARTS OF THE STATE OF WASHINGTON. /HRB/

Vol 41, pp 109-124, 13 FIG, 3 TAB, 9 REF, 2 APP. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01490400

1962

Highway Research Board Proceedings

Digital/other

Drainage; Field tests; Permeability; Road shoulders; Testing

Highways; Hydraulics and Hydrology

TRIS, TRB

Jan 31 1972 12:00AM

• A PARKING STUDY DESIGNED FOR DOWNTOWN PLANNING
• A PRACTICAL METHOD FOR CONSTRUCTING RIGID CONDUITS UNDER HIGH FILLS
• A PRELIMINARY EVALUATION OF COLOR AERIAL PHOTOGRAPHY IN MATERIALS SURVEYS
• A STRENGTH CRITERION FOR REPEATED LOADS
• A STUDY OF HVEEM STABILITY VS SPECIMEN HEIGHT
• ADVANCE ROUTE TURN MARKERS ON CITY STREETS
• CALCIUM CHLORIDE-SALT SNOW AND ICE CONTROL TEST, WINTER 960-61
• CATIONIC MIXING-GRADE ASPHALT EMULSIONS
• CHANGES IN PHYSICAL PROPERTIES OF ASPHALT PAVEMENT WITH TIME
• COLLECTING STATISTICS ON VEHICLES IN USE
• CONSTRUCTION METHODS IMPROVEMENT BY TIME-LAPSE MOVIE ANALYSIS
• CONSTRUCTION OF A FILL BY A MUD DISPLACEMENT METHOD
• CORRELATION OF LOAD BEARING TESTS ON SOILS
• ECONOMIC POSSIBILITIES OF CORROSION-RESISTANT LOW-ALLOY STEEL IN WELDED I-SECTION STRINGER HIGHWAY BRIDGES
• EFFECT OF AN INHIBITOR ON THE CORROSION OF AUTOBODY STEEL BY DE-ICING SALT
• EFFECT OF RUMBLE STRIPS ON TRAFFIC CONTROL AND DRIVER BEHAVIOR
• ESTHETIC CRITERIA IN FREEWAY DESIGN
• EVALUATING EFFECTIVENESS OF LANE-USE CONTROL DEVICES AT INTERSECTIONS
• FIELD TEST FOR ESTIMATING SERVICE LIFE OF CORRUGATED METAL PIPE CULVERTS
• FISCAL MANAGEMENT AND CONTROL-A SYMPOSIUM
• HIGHWAY FUND DISTRIBUTION POLICY
• INFLUENCE OF VEHICLE SPEED ON PAVEMENT DEFLECTIONS
• LATERAL VEHICLE PLACEMENT AS AFFECTED BY SHOULDER DESIGN ON RURAL IDAHO HIGHWAYS
• MANAGEMENT IMPROVEMENT PROGRAMS IN STATE HIGHWAY DEPARTMENTS
• MEDIAN BARRIERS: ONE YEAR'S EXPERIENCE AND FURTHER CONTROLLED FULL-SCALE TESTS
• ROADSIDE DEVELOPMENT SAFETY FEATURES IN HIGHWAY DESIGN STANDARDS
• SOME MATHEMATICAL ASPECTS OF THE PARKING PROBLEM
• STATIC CARRYING CAPACITY OF STEEL PLATE GIRDERS
• STREET TRAVEL AS RELATED TO LOCAL PARKING
• TECHNICAL INSTITUTE TRAINING FOR HIGHWAY ENGINEERING TECHNICIANS
• USE OF SAFETY REST AREAS
• VARIABILITY OF ENGINEERING PROPERTIES OF BROOKSTON AND CROSBY SOILS
• VISCOELASTIC PROPERTIES OF ASPHALT CONCRETE
• WHAT CAN BE EXPECTED FROM TREATED WOOD IN HIGHWAY CONSTRUCTION