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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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    <item>
      <title>Report on Roadside Development by the Joint Committee of the American Association of State Highway Officials and the Highway Research Board</title>
      <link>https://trid.trb.org/View/2145534</link>
      <description><![CDATA[In 1932, a joint project of the American Association of State Highway Officials and the Highway Research Board was organized to make a survey of the laws, funds, organizations and technical practices relating to roadside development. This progress report does not attempt to cover all the details of roadside development. It defines the objectives of roadside development and discusses means of reaching them. The Committee expects to collect and present further information on some phases of the problem in a future report. Appended to this report is a digest of information received from several States on their laws, funds and administration for roadside development, and a list of references pertinent to this subject.]]></description>
      <pubDate>Sat, 12 Aug 2023 14:21:46 GMT</pubDate>
      <guid>https://trid.trb.org/View/2145534</guid>
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    <item>
      <title>SLOPE DESIGN PRACTICE IN THE GREAT SMOKY MOUNTAINS NATIONAL PARK</title>
      <link>https://trid.trb.org/View/2218966</link>
      <description><![CDATA[Good conservation policy requires that roads in National Parks shall be inconspicuous and create a minimum of scar and disfigurement of the landscape. The results of 16 years of road construction in the Great Smoky Mountains National Park demonstrate that these requirements can be met without prohibitive cost and without sacrifice of essential traffic service by adherence to proven roadside design and construction practices. Most of the roads in this area lie in rough mountain terrain covered by dense forest. Plentiful rainfall insures rapid growth of vegetation but also presents serious erosion problems. Roadside use by the public is an important factor in the design of roads as great crowds of people flock to the Park on summer weekends. This article discusses the slope design practices for erosion control.]]></description>
      <pubDate>Sat, 29 Jul 2023 16:29:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/2218966</guid>
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    <item>
      <title>LOWER-COST ROADSIDE MAINTENANCE BY SPRAYING</title>
      <link>https://trid.trb.org/View/2199647</link>
      <description><![CDATA[After much discussion of the pros and cons of roadside maintenance by spraying in Sussex County, New Jersey, it was decided to try it and a contract was made with McMahon Brothers of Binghamton, N.Y. about four years ago (1954). A trial spraying was conducted on about 70 miles of roadside. The year following this experiment the department contracted with the same firm to spray the entire highway system three times each year for a 3-year period, leaving only a few miles in strategic locations for comparison. This article compares the results obtained by spraying with the check areas where mowing was continued as it always had been done.]]></description>
      <pubDate>Sat, 29 Jul 2023 16:29:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/2199647</guid>
    </item>
    <item>
      <title>ROADSIDE LITTER: ITS CLEAN-UP, COST AND CURE</title>
      <link>https://trid.trb.org/View/104299</link>
      <description><![CDATA[SINCE THE ROADSIDE-LITTER PROBLEM IS LIKELY TO BE WITH US FOR SOME TIME, THE FIRST STEP IN ITS SOLUTION APPEARS TO BE DECREASED COST THROUGH MECHANIZATION--A MOVE WHICH HAS BEEN SUCCESSFUL IN OTHER FIELDS SUCH AS GRADING, ROADSIDE SEEDING AND MULCHING. CALIFORNIA HAS DEVELOPED A ROADSIDE "VACUUM CLEANER" BASED ON THE GOOD ROADS LEAF COLLECTOR, WITH MODIFICATIONS TO PERMIT BOTTLES AND CANS TO DROP DIRECTLY INTO THE BOTTOM OF THE UNIT INSTEAD OF PASSING THROUGH THE FAN WHICH, OF COURSE, WOULD BE DAMAGED BY THEM. IT SHOULD BE A RELATIVELY SIMPLE TASK TO DEVELOP A MACHINE WHICH WOULD GATHER UP ALL THE LITTER--PAPERS, BOXES, CANS, BOTTLES, ETC.--QUICKLY AND ECONOMICALLY, AND IT WOULD SEEM DESIRABLE TO PLACE THIS PROBLEM BEFORE SOME OF THE MANUFACTURERS OF ROAD-MAINTENANCE EQUIPMENT. THE LONG- RANGE OBJECTIVE IS, OF COURSE, TO ELIMINATE OR MINIMIZE THE PROBLEM. THIS CAN BE TACKLED IN THREE WAYS: (1) LEGISLATION; (2) PUBLIC EDUCATION; AND (3) PROVISION OF SUFFICIENT TRASH RECEPTACLES OR DISPOSAL AREAS.]]></description>
      <pubDate>Wed, 22 Nov 2000 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104299</guid>
    </item>
    <item>
      <title>HERBICIDES FOR ROADSIDES</title>
      <link>https://trid.trb.org/View/97574</link>
      <description><![CDATA[A GENERAL SURVEY IS MADE OF WEED CONTROL MEASURES ON WHICH THERE IS WIDESPREAD AGREEMENT. THE CHOICE OF A CHEMICAL SHOULD BE BASED ON SUCH CONSIDERATIONS AS THE SPECIES OF PLANTS, WHETHER HERBACEOUS OR WOOD; THE TIMING OF SPRAYING IN RELATION TO STAGE OF PLANT DEVELOPMENT; SPECIFIC SOIL AND CLIMATIC CONDITIONS; THE TIME OF YEAR OF TREATMENT; THE SUSCEPTIBILITY OF ADJACENT PLANTS; THE DEGREE OF CONTROL DESIRED; AND RELATIVE COSTS. SOME CHEMICALS MAY NOT KILL CERTAIN WEEDS, WHILE ON THE OTHER HAND SOME CHEMICALS MAY KILL DESIRABLE AND PROFITABLE VEGETATION. THE EFFECTS OF VARIOUS MODERN CHEMICALS ON DIFFERENT KINDS OF PLANTS ARE DESCRIBED. THE DISCUSSION CONCLUDES WITH A REVIEW OF THE DIFFERENT EQUIPMENT REQUIREMENTS OF VARIOUS KINDS OF WEED CONTROL.]]></description>
      <pubDate>Wed, 22 Nov 2000 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/97574</guid>
    </item>
    <item>
      <title>DISCUSSIONS AND COMMENTS: ROADSIDE GRADING AND DRAINAGE</title>
      <link>https://trid.trb.org/View/104287</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Sun, 23 Apr 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104287</guid>
    </item>
    <item>
      <title>PROTECTING THE ROADSIDES THROUGH COMPREHENSIVE PLANNING</title>
      <link>https://trid.trb.org/View/104166</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Tue, 08 Feb 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104166</guid>
    </item>
    <item>
      <title>EROSION CONTROL - MAINTENANCE</title>
      <link>https://trid.trb.org/View/104144</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Mon, 24 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104144</guid>
    </item>
    <item>
      <title>DRAINAGE - ROADSIDE DEVELOPMENT</title>
      <link>https://trid.trb.org/View/104148</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Mon, 24 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104148</guid>
    </item>
    <item>
      <title>ROADSIDE DEVELOPMENT AND WAYSIDE AREAS - DESIGN</title>
      <link>https://trid.trb.org/View/104149</link>
      <description><![CDATA[THE FIRST STEP IN THE DEVELOPMENT OF ROADSIDES AND THE ESTABLISHMENT OF WAYSIDE AREAS IS THE ACQUISITION OF ADEQUATE RIGHT-OF-WAY. ROADSIDES SHOULD BE DEVELOPED ACCORDING TO THEIR NATURAL STATE, WHICH CANNOT BE PRESERVED UNLESS ADEQUATE WIDTH IS OBTAINED. CONVERSELY, WIDTH SHOULD NOT BE FIXED: IT CAN BE NARROWED OR EXTENDED AS TOPOGRAPHY AND OTHER  CONDITIONS WARRANT. ROADSIDE AREAS SHOULD BE PLANNED AT REGULAR INTERVALS SO THAT THE TRAVELLING PUBLIC CAN ANTICIPATE THEM. RECONSTRUCTION OR WIDENING OF EXISTING ROADWAYS MAY PROVE MORE COSTLY THAN CONSTRUCTION OF A NEW ROAD, MAKING ONE-WAY HIGHWAYS IN EACH DIRECTION.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104149</guid>
    </item>
    <item>
      <title>DRAINAGE-DESIGN</title>
      <link>https://trid.trb.org/View/104146</link>
      <description><![CDATA[SOME OF THE PROBLEMS CREATED BY THE LOCATION AND CONSTRUCTION OF HIGHWAYS ARE FLOODING OF AREAS ABOVE BRIDGES AND CULVERTS; UNDERMINING OF STRUCTURES; EROSION OF EMBANKMENTS, SHOULDERS, SLOPES, AND DITCHES; REDUCTION OF SUPPORTING STRENGTH OF SUBGRADE; HEAVING AND SETTLEMENT OF NONRIGID PAVEMENTS; AND BLOW-UPS, CORNER BREAKS, CRACKING, AND HIGH JOINTS IN RIGID PAVEMENTS. THE SOLUTION TO THESE PROBLEMS CAN BE STATED SIMPLY, CONSISTING IN THE INTERCEPTION, COLLECTION, TRANSPORTATION, AND DISPOSAL OF BOTH SURFACE AND GROUND WATERS. OF THESE, THE MOST IMPORTANT IS DISPOSAL. IN ROLLING OR ROUGH TERRAIN THIS IS USUALLY EASY, BUT IN LEVEL COUNTRY IT IS FREQUENTLY VERY DIFFICULT. SOMETIMES THE ONLY SOLUTION IS TO CONSTRUCT THE ROADBED SEVERAL FEET ABOVE THE GENERAL GROUND LEVEL AND TO USE WIDE, RELATIVELY SHALLOW DITCHES. THIS WILL KEEP THE WATER TABLE SOMWHAT BELOW THE SUBGRADE EVEN THOUGH WATER MAY STAND IN THE DITCHES AT TIMES. TOPICS TO BE CONSIDERED IN DRAINAGE DESIGN ARE HIGHWAY LOCATION, GROUNDWATER DRAINAGE, INTERCEPTING DRAINS, COLLECTING DRAINS, SURFACE WATER, UNIFORM CROWNS, GUTTER TYPES, LIP CURBS, SHOULDERS, SLOPES, DITCHES, AND AUXILIARY DITCHES.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104146</guid>
    </item>
    <item>
      <title>REPORT OF SUB-COMMITTEE ON HIGHWAY TYPES AND ROADSIDE AREAS</title>
      <link>https://trid.trb.org/View/104142</link>
      <description><![CDATA[ABOUT 2000 REPRESENTATIVE DESIGNS FOR HIGHWAY CONSTRUCTION PROJECTS BEGUN SINCE 1930 WERE EXAMINED TO DETERMINE CROSS SECTION TRENDS AS EXEMPLIFIED IN 15 CHARACTERISTICS (E.G., SLOPE RATE PER FOOT, RIGHT OF WAY WIDTH, CUT/FILL SLOPE RATIOS). DATA ARE PRESENTED FOR 1932, 1934, 1936, AND 1938 IN THE FORM OF MOVING AVERAGES FOR LOW AND HIGH TRENDS.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104142</guid>
    </item>
    <item>
      <title>EROSION CONTROL - DESIGN</title>
      <link>https://trid.trb.org/View/104143</link>
      <description><![CDATA[EROSION OF HIGHWAYS, ROADSIDES, AND CONTIGUOUS LAND AREAS INVOLVES NOT ONLY A STUDY OF THE DESTRUCTION OF THESE AREAS BY SURFACE WATER, WIND, AND TRAFFIC, BUT ALSO A STUDY OF SUBSURFACE WATER AND SOILS CHARACTERISTICS. THE DESIRED OBJECTIVE IS TO HAVE INTENTIONAL PHYSICAL CONTROL, AT ALL TIMES, OF FALLING, SEEPING, AND FLOWING WATER. SPECIFIC CONSIDERATIONS AND SUGGESTIONS RELATED TO THIS CONTROL ARE DISCUSSED UNDER THE TOPICAL HEADINGS: SOIL, STANDARD GUTTER SECTION, CURBING CONTROL, SOIL MAP FACTORS, SUBSURFACE WATER, SOIL ANALYSIS, CONTROL METHODS, WASTEFULNESS OF BACKSLOPE SANDPAPERING, SLOPE GRADING AND TREATMENT, CLASSIFICATION OF OPERATIONS AS TO SEASONAL AND NONSEASONAL, CHECK DAMS, DIVERSION DITCHES, AND GULLY EROSION.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104143</guid>
    </item>
    <item>
      <title>REPORT OF SUBCOMMITTEE ON ZONING</title>
      <link>https://trid.trb.org/View/104154</link>
      <description><![CDATA[SINCE THE MOST ESSENTIAL ELEMENT OF ZONING IS COMPREHENSIVENESS, THE INCONSISTENCY OF REGULATIONS WHICH GOVERN NO MORE THAN IMMEDIATE ROADSIDES IS APPARENT. "STRIP-ZONING", SO-CALLED, CANNOT BE COMPREHENSIVE. WE MUST REALIZE THAT ONE OF THE PURPOSES OF ROADSIDE IMPROVEMENT, AND NOT THE LEAST IMPORTANT, IS THE ADVANCEMENT OF AESTHETICS AS APPLIED TO THE LANDSCAPE, AND THE LANDSCAPE IS LIMITED ONLY BY VISION. WE MUST ALSO REMEMBER THAT "ZONING" IS NOT AN OBJECTIVE IN ITSELF, BUT AN IMPLEMENT OF PLANNING, AND THAT THE PLANNING OF THE ROADSIDE CANNOT STOP AT A DEFINITE DISTANCE FROM THE CENTER OF THE PAVEMENT. ONLY A FEW YEARS AGO ORGANIZED HIGHWAY BUILDERS WERE CONCERNED ONLY WITH MAJOR HIGHWAYS. TODAY THEY ARE CONCERNED WITH ALL HIGHWAYS. NOR CAN THE HIGHWAYS BE CONSIDERED BY THEMSELVES, SINCE THEY, TOO, ARE ONLY A FACILITY BY MEANS OF WHICH PEOPLE WHO ARE SERVED, AND THE LANDS WHICH ARE TRAVERSED. PARTICULARLY IN LATE YEARS, IT HAS COME TO BE REALIZED THAT THE MANNER OF USE OF PRIVATELY OWNED LAND IS OF GREAT PUBLIC CONCERN, AND THAT THE PUBLIC INTEREST IS BEST SERVED IF THE LAND IS USED FOR THE PURPOSES FOR WHICH IT IS BEST SUITED, AND IN THE MANNER THAT WILL PRESERVE OR EVEN IMPROVE, ITS USEFULNESS. THIS MEANS LAND PLANNING ON A COMPREHENSIVE BASIS, WITH THE ROADSIDES TREATED AS A PART OF THE WHOLE. ASIDE FROM ITS LACK OF COMPREHENSIVENESS, STRIP ZONING IS LESS DESIRABLE THAN COMPREHENSIVE ZONING FOR THE REASON THAT , IF PUT INTO EFFECT PRIOR TO COMPREHENSIVE ZONING, IT CANNOT FAIL TO CAUSE CONFUSION LATER, WHEN COMPREHENSIVE ZONING SHALL BE UNDERTAKEN. /AUTHOR/ THE CONTENT OF A MODEL COUNTY ZONING ORDINANCE EMBODYING THESE CONCEPTS IS SKETCHED, AND THE WISCONSIN EXPERIENCE IS CITED.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104154</guid>
    </item>
    <item>
      <title>REPORT OF SUBCOMMITTEE ON HIGHWAY TYPES AND ROADSIDE AREAS</title>
      <link>https://trid.trb.org/View/104155</link>
      <description><![CDATA[No abstract provided.]]></description>
      <pubDate>Mon, 17 Jan 1972 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/104155</guid>
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