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    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>AN INFORMATION SYSTEM FOR THE PLANNING, DESIGN AND MANAGEMENT OF A REGIONAL ROAD NETWORK</title>
      <link>https://trid.trb.org/View/269818</link>
      <description><![CDATA[This paper presents a synthesis of the working method, the state of progress and the first results of the research, collection and processing of the data necessary for the planning of passenger and freight transport at a regional level.  The objective of the project was the organisation and development of information as a test for the control of the road network with regard to: the planning of investments; the planning of maintenance operations or of new projects; and  the management of plant.  (TRRL)]]></description>
      <pubDate>Fri, 27 Aug 2004 21:56:55 GMT</pubDate>
      <guid>https://trid.trb.org/View/269818</guid>
    </item>
    <item>
      <title>PLANNING OF PROJECTS-EARTHWORKS-DENMARK</title>
      <link>https://trid.trb.org/View/121915</link>
      <description><![CDATA[THE PROPOSED MOTORWAYS IN DENMARK CALL FOR COMPREHENSIVE SOIL SURVEYS FOR THE PAVEMENT DESIGN. IN PLANNING THESE SURVEYS, SYSTEMATIC USE IS BEING MADE OF EXISTING GEOLOGICAL AND GEOLOGICAL-GEOTECHNICAL EXPERIENCE. GEOLOGICAL MAPPING OF THE SUBSOIL WHICH HAS BEEN UNDERTAKEN IS DESCRIBED. ON THE STRENGTH OF THESE MAPS AND OF PERSONAL EXPERIENCE GEOLOGICAL REPORTS AND MAPS ARE WORKED OUT FOR THE AREAS AFFECTED BY PROPOSED MOTORWAY INSTALLATIONS. THE USE OF SUCH REPORTS AND MAPS HAS RESULTED IN A HIGHER DEGREE OF ACCURACY IN ESTIMATING THE QUANTITIES OF SWAMPY GROUND WHICH MUST BE EXCAVATED AND HAS PERMITTED DETAILED PLANNING OF THE REMAINING SOIL SURVEYS, WITH CONSEQUENT SAVINGS IN THE EXTENT OS SOIL SURVEY OPERATIONS. THE MARKED RISE IN THE STANDARD OF LIVING IN DENMARK HAS RESULTED IN AN ENORMOUS INCREASE IN THE RATE OF MOTORWAY CONSTRUCTION THROUGHOUT THE COUNTRY. THIS HAS GIVEN RISE TO PROBLEMS OF ADMINISTRATION AND CO-ORDINATION BETWEEN THE DIFFERENT AUTHORITIES. IN ORDER TO SOLVE THIS PROBLEM, THE PERT NETWORK PLANNING SYSTEM HAS BEEN INTRODUCED FOR THE PREPARATION OF THE PROJECT AND HAS ALSO BEEN TRIED OUT FOR THE EXECUTION OF SPECIFIC JOBS. THE RESULTS OF NETWORK PLANNING FOR A CERTAIN SECTION OF THE MOTORWAY ACROSS FUNEN (84 KM) ARE DISCUSSED. IN THE CASE OF A BRIDGE CONSTRUCTION JOB AND A ROAD SURFACING JOB, THE CONTRACTORS WERE REQUIRED TO MAKE USE OF NETWORK PLANNING, AND THE APPLICATION OF THE SYSTEM CAN BE RECOMMENDED ALSO FOR THIS PURPOSE. NETWORK PLANNING, TAKING THE PLACE OF CONVENTIONAL PLANNING METHODS, CAN BE RECOMMENDED FOR THE PLANNING METHODS AND EXECUTION OF MAJOR ROAD WORKS AND FACILITATE THE ADAPTION OF THE WORKS TO A GIVEN RATE OF CAPITAL EXPENDITURE.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:41:19 GMT</pubDate>
      <guid>https://trid.trb.org/View/121915</guid>
    </item>
    <item>
      <title>PROGRAM INPUTS AND CALIBRATION OF THE DIRECT TRAFFIC ESTIMATION METHOD</title>
      <link>https://trid.trb.org/View/120750</link>
      <description><![CDATA[A NEW APPROACH TO TRAFFIC VOLUME ESTIMATION IS BEING DEVELOPED BY THE TRI-STATE TRANSPORTATION COMMISSION. THE DIRECT TRAFFIC ESTIMATION METHOD REQUIRES AS INPUTS A CODED HIGHWAY NETWORK AND A FILE OF TRIP ENDS PER UNIT AREA, ALL ITEMS OF DATA BEING IDENTIFIED BY X-Y COORDINATES. OUTPUT DATA AVAILABLE INCLUDE LINK VOLUMES, TURNING MOVEMENTS, AND MINIMUM COST TREES. THE GENERAL CONCEPTS OF THE METHOD ARE REVIEWED. THE INPUTS AND METHODS OF COMPUTATION ARE DESCRIBED AND THE INITIAL CALIBRATION RESULTS ARE PRESENTED. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:40 GMT</pubDate>
      <guid>https://trid.trb.org/View/120750</guid>
    </item>
    <item>
      <title>COMPARATIVE ANALYSIS OF TRAFFIC ASSIGNMENT TECHNIQUES WITH ACTUAL HIGHWAY USE</title>
      <link>https://trid.trb.org/View/120747</link>
      <description><![CDATA[METHODS IN USE TO FORECAST AND ASSIGN TRAFFIC IN PLANNING OF MAJOR HIGHWAY FACILITIES ARE REVIEWED. TRAFFIC ASSIGNMENTS WERE COMPUTED BASED ON BOTH TRAVEL TIME AND DISTANCE PARAMETERS USING VARIOUS DIVERSION CURVES. NETWORK TRAFFIC ASSIGNMENT METHODS WERE REVIEWED WITH REGARD TO HIGHWAY CAPACITY RESTRAINT FUNCTIONS. THESE RESULTS WERE COMPARED WITH THE ACTUAL TRAVEL DATA. AN ANALYSIS IS PRESENTED OF ERRORS RELATED TO ORIGIN-DESTINATION INPUT WITH REGARD TO INDIVIDUAL LINKS OF THE NETWORK. FURTHER ANALYSIS WAS CONDUCTED TO RELATE LINK ASSIGNMENTS TO CHANGES IN THE ORIGIN-DESTINATION PATTERNS AND TO NETWORK CHANGES. A PAIR OF ORIGIN-DESTINATION STUDIES, MADE BEFORE AND AFTER THE CONSTRUCTION OF A NEW CONNECTICUT RIVER CROSSING, WERE USED TO TEST ASSIGNMENTS TO AN ISOLATED RURAL HIGHWAY FACILITY. THE FOUR TECHNIQUES TESTED WERE THE AASHO DIVERSION CURVE, THE CALIFORNIA DIVERSION CURVE, THE ALL-OR-NONE METHOD, AND A DIFFERENCE-RATIO METHOD. COMPARISONS OF ASSIGNMENT RESULTS TO 1956 SURVEY RESULTS FOR THE TWO EXISTING BRIDGES INDICATED THAT ALL OF THE METHODS USED DUPLICATED SURVEY RESULTS AND THAT TIME-BASED ASSIGNMENTS WERE SLIGHTLY BETTER THAN DISTANCE-BASED RESULTS. A NEW ASSIGNMENT TECHNIQUE, IN WHICH TRAVEL TIMES VIA ALL THREE RIVER CROSSINGS WERE CONSIDERED SIMULTANEOUSLY, DUPLICATED THE SURVEY VOLUMES ON ALL THREE BRIDGES. TRAFFIC ASSIGNMENT TO INDIVIDUAL LINKS OF A NETWORK ARE EMPHASIZED SO THAT THE RESULTING VOLUMES CAN BE USED BY HIGHWAY AND TRAFFIC ENGINEERS IN THEIR GEOMETRIC DESIGN COMPUTATION. PREVIOUS OBSERVATIONS WERE SUBSTANTIATED THAT TRAVEL TIME IS A BETTER PARAMETER THAN TRAVEL DISTANCE.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/120747</guid>
    </item>
    <item>
      <title>A MECHANICAL METHOD FOR ASSIGNING TRAFFIC TO EXPRESSWAYS</title>
      <link>https://trid.trb.org/View/120738</link>
      <description><![CDATA[THIS PAPER DESCRIBES THE CODING TECHNIQUES AND MACHINE PROCEDURES WORKED OUT TO FACILITATE A RAPID ASSIGNMENT TO EXPRESSWAYS IN THE DETROIT AREA. USING THIS ASSIGNMENT METHOD 23,500 ZONE-TO-ZONE MOVEMENTS WERE ASSIGNED TO A NETWORK OF EXPRESSWAYS AND CONNECTING ARTERIALS TOTALING 375 MILES IN SLIGHLY LESS THAN THREE WEEKS. FEATURES OF THIS ASSIGNMENT PROCEDURE ARE THAT ALTERNATE DISTANCES CAN BE RAPIDLY AND ACCURATELY ESTIMATED BY A MACHINE TECHNIQUE. SECOND IS A METHOD OF TREATING EXPRESSWAY TRIPS IN PARTS AND MATCHING PARTS TOGETHER TO FORM TRIPS THUS ELIMINATING THE NECESSITY OF REVIEWING AND CODING EACH ZONE-TO-ZONE TRANSFER INDIVIDUALLY. FINALLY, THE ADAPTABILITY OF THIS PROCEDURE TO HIGH SPEED COMPUTING AND SUMMARIZING TECHNIQUES MAKES POSSIBLE A TREMENDOUS CONSERVATION OF TIME AND MANPOWER. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/120738</guid>
    </item>
    <item>
      <title>CAPACITIES OF NARROW STREETS WITH MANUAL CONTROL AND SIGNAL CONTROL</title>
      <link>https://trid.trb.org/View/120725</link>
      <description><![CDATA[THE CAPACITIES OF NARROW STREETS AT FORT BELVOIR, VIRGINIA, ARE REPORTED AS DETERMINED BY FIELD SURVEY OF CAPACITIES AT INTERSECTIONS. IN ADDITION TO THE OVERLOADS WHICH WERE PUSHED THROUGH FORT BELVOIR INTERSECTIONS DURING PEAK PERIODS, THERE WERE FREQUENTLY TREMENDOUS BACKLOGS OF VEHICLES UNABLE TO ENTER THE INTERSECTIONS. AT INTERSECTIONS UNDER MILITARY POLICE CONTROL, THE OVERLOADS WERE GENERALLY ACCOMPLISHED BY STRETCHING THE GO PERIOD FOR THE MAJOR FLOW TO SUCH EXTREME LENGTHS THAT CROSS TRAFFIC WAS SEVERELY PENALIZED. OF COURSE, SUCH EXCESSIVE SINGLE-CYCLE DELAYS TO CROSS TRAFFIC COULD NOT OCCUR AT INTERSECTIONS CONTROLLED BY FIXED-TIME SIGNALS, ALTHOUGH LENGTHY BACK-UPS DID OCCUR. WHILE 31 INTERSECTION APPROACHES WERE FOUND TO BE OVERLOADED IN THE PEAK 15 MINUTE PERIOD, ONLY TWO SECTIONS OF ROADWAY WERE FOUND TO BE IN URGENT NEED OF WIDENING. CAPACITY RESTRICTIONS IN THE POST ROADNET WERE DUE ALMOST ENTIRELY TO INTERSECTION DEFICIENCIES.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:34 GMT</pubDate>
      <guid>https://trid.trb.org/View/120725</guid>
    </item>
    <item>
      <title>PROGRAM FOR ASSIGNING TRAFFIC TO A HIGHWAY NETWORK</title>
      <link>https://trid.trb.org/View/120719</link>
      <description><![CDATA[A PROGRAM IS DESCRIBED WHICH HAS BEEN DEVELOPED BY THE U. S. BUREAU OF PUBLIC ROADS USING AN IBM 705 COMPUTER PROGRAM TO PREDICT THE FUTURE DISTRIBUTION OF TRIPS. THE INPUT REQUIRED IS THE NUMBER OF EXISTING ZONE-TO-ZONE TRIPS AND THE GROWTH FACTOR FOR EACH ZONE. THE PROGRAM LOGIC FOLLOWS THE FRATAR FORMULA. THE OUTPUT IS THE ESTIMATED NUMBER OF FUTURE ZONE-TO-ZONE TRIPS. THE TIME-RATIO CURVE RELATES THE PERCENTAGE OF TRIPS USING A FREEWAY FACILITY BASED ON THE RATIO OF THE TRAVEL TIME VIA THE FREEWAY TO THE TRAVEL TIME VIA THE BEST ALTERNATE ROUTE. THE SPEED-RATIO CURVES DEVELOPED FOR THE DETROIT AREA TRANSPORTATION STUDY ARE DESCRIBED. THE CALIFORNIA TIME-AND-DISTANCE CURVE CONSISTS OF A FAMILY OF HYPERBOLAS WHERE EQUAL TIME AND DISTANCE ON THE FREEWAY AS COMPARED TO THE BEST ALTERNATE ROUTE WILL ASSIGN 50% OF THE TRAFFIC TO THE FREEWAY. THE MINIMUM PATH PRINCIPLE USED BY THE CHICAGO AREA TRANSPORTATION STUDY GROUP IS ALSO DESCRIBED. THE WASHINGTON TRAFFIC ASSIGNMENT PROGRAM DEVELOPED BY THE BUREAU OF PUBLIC ROADS IS PRESENTED IN DETAIL. PROGRAM CONVENTIONS AND LIMITATIONS ARE DISCUSSED. IT IS CONCLUDED THAT THE ACCURACY OF THE ASSIGNMENT PROGRAM RESTS BASICALLY WITH THE ACCURACY OF THE ASSUMPTION THAT TRAFFIC DIVIDES BETWEEN ROUTES IN ACCORDANCE WITH THE TIME-RATIO DIVERSION CURVE.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:32 GMT</pubDate>
      <guid>https://trid.trb.org/View/120719</guid>
    </item>
    <item>
      <title>GENERAL METHODS OF CALCULATING TRAFFIC DISTRIBUTION AND ASSIGNMENT</title>
      <link>https://trid.trb.org/View/120627</link>
      <description><![CDATA[MATHEMATICAL MODELS FOR TRIP DISTRIBUTION ARE PRESENTED WITH THE CORRESPONDING FORMULAS AND METHODS. GROWTH FACTORS, EXPANSION FACTORS AND ITERATIVE PROCEDURES ARE APPLIED. THESE ANALYTIC METHODS PERMIT FORECASTS FOR FUTURE CHANGES IN TRIP GENERATION AND TRAVEL RESISTANCE. TRAFFIC ASSIGNMENT TO THE TRANSPORTATION NETWORK BY MATHEMATICAL ANALYSIS USING CAPACITY RESTRAINT TECHNIQUES IS DEVELOPED. NETWORK METHODS AND SHORTEST ROUTE CALCULATIONS ARE PRESENTED.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:11 GMT</pubDate>
      <guid>https://trid.trb.org/View/120627</guid>
    </item>
    <item>
      <title>APPLICATION OF LARGE NETWORK TRAFFIC ASSIGNMENTS TO SMALL AREA ROUTE LOCATION STUDIES</title>
      <link>https://trid.trb.org/View/120599</link>
      <description><![CDATA[MODERN ELECTRONIC COMPUTERS HAVE BEEN VERY USEFUL IN THE DISTRIBUTION OF INTERZONAL TRIPS AND IN THE ASSIGNMENT OF THESE TRIPS TO LARGE NETWORKS OF STREETS AND FREEWAYS. ONCE A FREEWAY SYSTEM HAS BEEN SELECTED, HOWEVER, THERE STILL REMAINS THE PROBLEM OF PRECISELY LOCATING INDIVIDUAL FREEWAY SEGMENTS OF THE OVERALL SYSTEM. THESE LOCATION STUDIES USUALLY REQUIRE THE ASSIGNMENT OF TRAFFIC TO SEVERAL ALTERNATE LOCATIONS AND ECONOMIC COMPARISONS OF THESE ALTERNATES. A METHOD OF UTILIZING OUTPUT DATA FROM LARGE NETWORK TRAFFIC ASSIGNMENTS FOR SMALL AREA ROUTE LOCATION STUDIES IS DESCRIBED. THE METHOD INVOLVES A PROCEDURE WHEREBY THE STUDY AREA USED FOR THE DISTRIBUTION OF TRIPS IS REDUCED IN SIZE FOR THE PURPOSE OF ASSIGNING TRAFFIC TO ALTERNATE ROUTE LOCATIONS. RESULTS INDICATE THAT THIS REDUCED NETWORK METHOD CAN OFFER CONSIDERABLE SAVINGS IN MACHINE PROCESSING TIME WITHOUT LOSS OF ACCURACY IN ROUTE LOCATION STUDIES. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:04 GMT</pubDate>
      <guid>https://trid.trb.org/View/120599</guid>
    </item>
    <item>
      <title>ESTIMATING ANNUAL AVERAGE DAILY TRAFFIC FROM SHORT-TERM TRAFFIC COUNTS</title>
      <link>https://trid.trb.org/View/120596</link>
      <description><![CDATA[THE PURPOSE OF THIS STUDY WAS TO EVALUATE A METHOD ADVOCATED BY THE U. S. BUREAU OF PUBLIC ROADS FOR ESTIMATING ANNUAL AVERAGE DAILY TRAFFIC FROM SHORT-TERM TRAFFIC COUNTS AND TO DETERMINE WHETHER EXISTING PROCEDURES COULD BE IMPROVED WITH REDUCED ANNUAL COST. THIS STUDY PERTAINED TO RURAL ROADS CARRYING 500 OR MORE VEHICLES PER DAY. SOME OF THE FIRST TESTS WERE CONDUCTED FOR THE PURPOSE OF DETERMINING THE MOST SATISFACTORY METHOD OF GROUPING CONTINUOUS COUNTING STATIONS AND THE COMPUTATION OF MEAN MONTHLY ADJUSTMENT FACTORS FOR EACH GROUP. ONE OF THE FIRST CONCLUSIONS WAS THAT CONTINUOUS COUNT STATIONS SHOULD BE GROUPED ON THE BASIS OF AVERAGE MONTHLY ADJUSTMENT FACTORS OF SEVERAL CONSECUTIVE YEARS RATHER THAN ON THE BASIS OF THE FACTORS FOR ANY SINGLE YEAR. IT WAS FURTHER CONCLUDED THAT DIVISION OF THE STATES RURAL ROADWAYS INTO FIVE GROUPS WOULD BE SUFFICIENT STRATIFICATION OF ANNUAL PATTERNS OF TRAFFIC VOLUME VARIATION. TESTS WERE MADE TO DETERMINE THE RELATIVE EFFICIENCY OF SEASONAL CONTROL COUNTS REPEATED A VARIOUS NUMBER OF TIMES PER YEAR PER LOCATION FOR ESTABLISHING GROUP ASSIGNMENTS OF ROADWAY SECTIONS AND ESTIMATING AADT. TESTS WERE MADE PERTAINING TO SEASONAL CONTROL COUNTS REPEATED FOUR, SIX AND TWELVE TIMES A YEAR PER LOCATION. THE STANDARD DEVIATIONS OF THE ERRORS OF ESTIMATED AADT FROM SEASONAL CONTROL COUNTS OF FOUR, SIX AND TWELVE TIMES PER YEAR WERE 3.6, 3.1 AND 1.7 PERCENT, RESPECTIVELY. COMPARISONS OF THE RESULTS OF USING VARIOUS SEASONAL CONTROL COUNTS TO INDICATE GROUP ASSIGNMENT OF ROADWAY SECTIONS SHOWED NO SIGNIFICANT DIFFERENCE. THE MISSOURI STATE HIGHWAY DEPARTMENT IS CONSIDERING THE ADOPTION OF THE BUREAUS METHOD OF ESTIMATING AADT USING A 7-DAY COVERAGE COUNT PROGRAM AND SEASONAL CONTROL COUNTS REPEATED FOUR TIMES A YEAR PER LOCATION. IT IS BELIEVED THAT THE EVENTUAL ANNUAL SAVINGS OF THIS METHOD WOULD BE APPROXIMATELY ONE-HALF THE COST OF THE CURRENT PROGRAM. /AUTHOR/]]></description>
      <pubDate>Sun, 15 Aug 2004 02:36:03 GMT</pubDate>
      <guid>https://trid.trb.org/View/120596</guid>
    </item>
    <item>
      <title>CONCEPT OF FUTURE ROADWAY NETWORKS DESIGNED FOR SAFETY AND SERVICE</title>
      <link>https://trid.trb.org/View/118774</link>
      <description><![CDATA[THE CONCEPT IS PROPOSED OF A FREEWAY SYSTEM WITHOUT BRIDGES, A SYSTEM OF CITY STREETS ON THE FREEWAY PRINCIPAL WITHOUT BRIDGES OR TRAFFIC SIGNALS, AND TRANSITION ROADS OF SIMILAR DESIGN. FREEWAY MOVEMENT CAN BE ACCOMPLISHED WITHOUT THE USE OF GRADE SEPARATION BRIDGES BY CONVERGING ONE-WAY ROADS AND DIVERGING ONE-WAY ROADWAYS WITH CONVERGING AND DIVERGING POINTS AT LEAST ONE-ONE-HALF MILES APART ON THE MAJOR FREEWAYS BUT LESSER DISTANCES APART ON THE OTHERS. THIS TYPE OF SYSTEM WOULD AVOID THE COMPLEXITIES OF OUR MODERN HIGHWAY INTERSECTION DESIGNS WHICH, IN MANY CASES, REQUIRE VERY EXPENSIVE SIGNING TO GUIDE TRAFFIC THROUGH THE INTERSECTION. THIS CONCEPT ENVISIONS A LARGE REDUCTION IN ACCIDENTS, INJURIES AND FATALITIES. IN THIS SYSTEM, ALL ROAD NETS CONSIST OF INDEPENDENT ONE-WAY ROADWAYS, THAT IS, THEY SHOULD NOT BE CONSIDERED AS ONE DIRECTION OF A DIVIDED HIGHWAY. IT IS PROPOSED TO UTILIZE SOME EXISTING HIGHWAYS AS ONE-WAY HIGHWAYS IN ORDER TO ACQUAINT DRIVERS WITH THIS TYPE OF FACILITY. THESE ONE-WAY HIGHWAYS CAN BE INDEPENDENT OF THE OPPOSITE DIRECTION OF TRAVEL. THE PLAN INCLUDES ONE-WAY FREEWAYS FOR ALL CLASSES OF ROADS, INCLUDING HIGH SPEED ROADWAYS AND LAND SERVICE STREETS.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:03:59 GMT</pubDate>
      <guid>https://trid.trb.org/View/118774</guid>
    </item>
    <item>
      <title>INVENTORY OF THE ARTERIAL STREET NETWORK</title>
      <link>https://trid.trb.org/View/118757</link>
      <description><![CDATA[A CAPACITY AND LEVEL OF SERVICE INVENTORY OF THE EXISTING ARTERIAL STREET AND HIGHWAY NETWORK IS AN IMPORTANT PART OF A TRANSPORTATION STUDY. THE DATA COLLECTED IS NECESSARY TO CALCULATE EXISTING TRAFFIC-CARRYING CAPACITY OF A STREET OR HIGHWAY, TO COMPUTE MINIMUM TIME PATHS BETWEEN TRAFFIC ANALYSIS ZONES, AND TO ANALYZE THE ENTIRE SYSTEM CAPACITY. THE BASIC ARTERIAL STREET INVENTORY RECORDED THE STATUS OF THE NETWORK AS OF MAY 1963 WHEN THE ORIGIN AND DESTINATION SURVEYS WERE MADE. ASSIGNMENT OF THE SURVEYED TRIPS TO THIS NETWORK WILL BE CHECKED AGAINST MAY 1963 TRAFFIC COUNTS IN ORDER TO CHECK AND CALIBRATE THE TRAFFIC ASSIGNMENT MODELS. FUTURE ASSIGNMENTS WILL BE MADE AFTER THE BASIC INVENTORY DATA HAS BEEN EXPANDED TO INCLUDE LINKS CONSTRUCTED OR RECONSTRUCTED SINCE MAY 1963, AND LINKS TO BE CONSTRUCTED OR RECONSTRUCTED IN ALL COMMITTED CONSTRUCTION PROGRAMS. ALTERNATE LAND USE-TRANSPORTATION PLANS CAN BE TESTED AND ADJUSTMENTS MADE UNTIL A BALANCED SYSTEM IS PRODUCED. REGULAR UPDATING OF THE INVENTORY WILL RESULT IN A CONTINUING CAPABILITY FOR TESTING THE EFFECT OF ANY DIFFERENCES IN THE ACTUAL LAND DEVELOPMENT PATTERN FROM THE ADOPTED LAND USE-TRANSPORTATION PLAN. REFERENCES' ARTERIAL NETWORK AND TRAFFIC ANALYSIS ZONES, TECHNICAL RECORD, SEWRPC, VOL. 1, NO. 2. INVENTORY OF THE PHYSICAL STREET SYSTEM, PROCEDURE MANUAL 5A, NATIONAL COMMITTEE ON URBAN TRANSPORTATION, PUBLIC ADMINISTRATION SERVICE.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:03:31 GMT</pubDate>
      <guid>https://trid.trb.org/View/118757</guid>
    </item>
    <item>
      <title>CHECKING THE NETWORK DESCRIPTION FOR ARTERIAL HIGHWAY AND TRANSIT NETWORKS</title>
      <link>https://trid.trb.org/View/118753</link>
      <description><![CDATA[TRIPS DETERMINED FROM THE 1963 SEWRPC SURVEY DATA WILL FIRST BE ASSIGNED TO THE EXISTING NETWORKS AS A CHECK OF THE ACCURACY OF THE DATA. CALCULATED FUTURE TRIPS WILL BE LATER ASSIGNED TO PLANNED NETWORKS. TRAFFIC VOLUMES WILL BE ACCUMULATED BY ELECTRONIC COMPUTER ON THE NETWORK LINKS COMPRISING THE INTERZONAL MINIMUM TIME PATHS TO DETERMINE CAPACITY DEFICIENCIES AND VERIFY THE OVERALL FEASIBILITY OF THE PLANNED NETWORKS. BEFORE USING A NETWORK DESCRIPTION FOR TRAFFIC ASSIGNMENT BY COMPUTER, IT IS NECESSARY TO FIND AND ELIMINATE ANY ERRORS IN THE LINK DATA AND IN THE LINK CONNECTIONS AT NODES. THE ARTERIAL HIGHWAY NETWORK DESCRIPTION AND THE TRANSIT NETWORK DESCRIPTION, WHICH ARE ESSENTIAL TOOLS FOR TRAFFIC ASSIGNMENT, WERE EXTENSIVELY CHECKED TO SEE THAT THEY ACCURATELY REPRESENT THE CORRESPONDING REAL WORLD SYSTEMS. THIS WAS ACCOMPLISHED BY EDIT ROUTINES IN THE STANDARD BPR COMPUTER PROGRAMS WHICH WERE UTILIZED BY PLOTTING SELECTED MINIMUM PATH TREES AND EXAMINING THESE FOR VALIDITY. REFERENCES' ARTERIAL NETWORK AND TRAFFIC ANALYSIS ZONES, TECHNICAL RECORD, SEWRPC, VOL. 1, NO. 2. RAIL AND TRANSIT INVENTORY AND DESIGN OF THE TRANSIT NETWORK, TECHNICAL RECORD, SEWRPC, VOL. 1, NO. 3. INVENTORY OF THE ARTERIAL NETWORK, TECHNICAL RECORD, SEWRPC, VOL. 1, NO. 5.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:03:25 GMT</pubDate>
      <guid>https://trid.trb.org/View/118753</guid>
    </item>
    <item>
      <title>TRANSPORTATION SYSTEM INVENTORY CODING MANUAL</title>
      <link>https://trid.trb.org/View/118741</link>
      <description><![CDATA[THE PURPOSE OF THE INVENTORY OF THE CHICAGO AREA TRANSPORTATION SYSTEM IS OUTLINED AND THE ADMINISTRATIVE CONTROLS USED ARE DESCRIBED. INSTRUCTIONS ARE GIVEN TO ACQUAINT THE CODER WITH THE FORMS AND MATERIALS TO BE USED AND THE CODING IS EXPLAINED, ITEM BY ITEM. THE PURPOSE OF THE INVENTORY OF THE TRANSPORTATION SYSTEM ARE' /1/ TO TRANSFER THE NAMES OF STREETS AND MASS TRANSIT ROUTES AND INFORMATION ABOUT THEM TO COMPUTER LANGUAGE, /2/ TO ALLOW EASY COMPUTATION AND SUMMARY OF THE TOTAL CAPACITIES OF STREET AND TRANSIT SYSTEMS, AND /3/ TO FACILITATE NETWORK ASSIGNMENT OF TRIPS TO THE TRANSPORTATION NETWORK BY USE OF AN ELECTRONIC COMPUTER. THE SURVEY IS DIVIDED INTO THREE PARTS' /1/ INTERSECTION INVENTORY, /2/ MASS TRANSIT ROUTE SECTION INVENTORY, AND /3/ ARTERIAL ROUTE SECTION INVENTORY.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:03:06 GMT</pubDate>
      <guid>https://trid.trb.org/View/118741</guid>
    </item>
    <item>
      <title>DESIGNING AND CODING THE TRANSIT NETWORK</title>
      <link>https://trid.trb.org/View/118739</link>
      <description><![CDATA[THE CODING TECHNIQUE OUTLINING NODAL IDENTIFICATION OF ROUTE SECTIONS WAS DETERMINED TO BE MOST SUITABLE FOR THE CHICAGO AREA TRANSIT NETWORK FOR THE ASSIGNMENT OF TRANSIT TRIPS. EACH LINK OF THE NETWORK WAS IDENTIFIED BY REFERENCE TO THE CODES OF THE TWO TERMINAL NODES SIMPLIFYING THE INCLUSION OF TERMINAL AND TRANSFER FRICTION LINKS. THE NETWORK CAN BE DESCRIBED ON MAPS REPRESENTATIVE OF ACTUAL GROUND CONDITIONS RATHER THAN BY THE UNREALISTIC DISPLAY OF ROUTES EVIDENCED IN AN ABSTRACT CODING NETWORK. THE BASIC DESIGN OF A LINK, OR ROUTE SECTION, AND THE IDENTITY OF THE LINK ARE DESCRIBED.]]></description>
      <pubDate>Sun, 15 Aug 2004 02:03:03 GMT</pubDate>
      <guid>https://trid.trb.org/View/118739</guid>
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