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Rights & Permissions Free PDF Access Sign in to download PDF book and chapters Free Resources Display this book on your site! Related Titles NCHRP Report 716: Travel Demand Forecasting: Parameters and Techniques Expanding Metropolitan Highways:Implications for Air Quality and Energy Use -- Special Report 245 Other Related Titles NCHRP Report 535: Predicting Air Quality Effects of Traffic-Flow Improvements: Final Report and User's Guide (2005) National Cooperative Highway Research Program (NCHRP) Citation Manager Export the bibliographic data for this book in your chosen format Web Search Builder Use this book's key terms to search within this book, across our collection, or across the Web. Skim This Chapter Skim this chapter and use this chapter's key terms to search within this book. Reference Finder Paste in your own text to find books that relate to your topic. Citation Manager Stopher, P, Skabardonis, A, Dowling, R, Gillen, D, Ireson, R, Transportation Research Board. "6.2 Methodology Application." NCHRP Report 535: Predicting Air Quality Effects of Traffic-Flow Improvements: Final Report and User's Guide. Washington, DC: The National Academies Press, 2005. Please select a format: Page 19   E-mail Share on facebook Facebook Share on delicious Delicious Share on stumbleupon Stumble Share on twitter Twitter More Sharing ServicesMore Page 19 Front Matter (R1-R178) 1.2 Organization of User's Guide (1-1) 2.1 Theoretical Foundation (2-2) 2.2 Outline of the Methodology (3-3) 2.3 HCM Assignment Module (4-4) 2.5 Growth Redistribution Module (5-5) 2.7 Vehicle Emission Module (6-6) 3.2 Capacities (7-7) 3.3 HCM/Akcelik Speed-Flow Equation (8-9) 3.4 Signal Data Required by HCM/Akcelik (10-11) 4.2 Derivation of Elasticities (12-13) 4.4 Alternate Methods for Deriving Elasticities (14-15) 5.1 Module Description (16-16) 5.2 Module Application (17-18) 6.2 Methodology Application (19-23) 7.3 Nontechnology Updates to Vehicle Emission Module (24-24) 7.5 Additions to Vehicle Emission Module (25-27) 8.2 Application of the HCM Assignment Module to the PSRC Data Set (28-32) 9.2 Case Study Results (33-35) 10.2 Case Study Results (36-38) 11.2 Case Study Results (39-41) 12.2 Case Study Results (42-44) 13.2 Case Study Results (45-47) 14.2 Case Study Results (48-50) 15.2 Case Study Results (51-53) 16.2 Case Study Results (54-56) 17.2 Case Study Results (57-58) 18.2 Case Study Results (59-60) 19.3 NCHRP 25-21 Methodology Results (61-62) Abbreviations used without definitions in TRB publications (63-63)

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19 CHAPTER 6 THE MODAL ACTIVITY MODULE The purpose of the Modal Activity Module is to calculate the flow speed, and signal spacing). The relationships were devel- VHT by mode of operation (i.e., cruise, idle, and acceleration/ oped through processing of simulated vehicle trajectories deceleration), which is defined by speed and acceleration using the Integrated Traffic Simulator (INTRAS; the prede- USER'S GUIDE category. The estimates of vehicle activity are then used cessor of the Freeway Simulation Model [FRESIM]) and the with modal emission factors (e.g., University of California, Traffic Network Simulation (TRAF-NETSIM) microscopic Riverside/NCHRP 25-1) to produce the emission estimates. simulation models. Comparisons of simulated and actual field measurements for different facility types, free-flow speeds, and levels of con- 6.1 METHODOLOGY DEVELOPMENT gestion showed that a single distribution of time spent versus speed (using the ratio of speed/free-flow speed) could be used The methodology for estimating modal activity is largely to represent many different free-flow speed conditions. Tables based on previous research conducted by the investigator 7 through 10 were developed to divide up the total VHT on a under the sponsorship of the California Air Resources Board link among the various speed and acceleration categories: (CARB). (See Skabardonis. A., "A Modeling Framework for Estimating Emissions in Large Urban Areas," Transportation · Uncongested freeway (volume/capacity [v/c] < 1.00), Research Record 1587, Transportation Research Board, 1997; · Congested freeway (v/c 1.00), and Skabardonis, A., "Feasibility and Demonstration of Net- · Uncongested arterial street (v/c < 1.00), and work Simulation Techniques for Estimation of Emissions in a · Congested arterial street (v/c 1.00). Large Urban Area," Final Report, prepared for the California Air Resources Board, DHS Inc., 1994.) This research pro- duced a set of relationships through microscopic simulation 6.2 METHODOLOGY APPLICATION that determine the proportion of the time spent Tij on a net- work link i in driving mode j as a function of the link's type The methodology requires as input the facility type, the and its volume/capacity ratio. The link classification (type) link volume/capacity ratio, and the link VHT. The total VHT was based on typical link classifications employed in plan- on a link is multiplied by the proportions in the appropriate ning and operational studies (e.g., facility types), and key table to obtain the distribution of VHT by speed category and design/operational characteristics (e.g., number of lanes, free- acceleration category.

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20 TABLE 7 Vehicle modal activity for uncongested freeways ACCELERATION (mph/sec) Spd/FreSpd -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 - - - - - - - - - - - 0.0065 - - - - - - - - - - 0.0167 - - - - - - - - 0.0003 0.0007 0.0008 0.0007 0.0002 - - - - - - - - 0.0333 - - - - - - - - 0.0003 0.0007 0.0008 0.0007 0.0002 - - - - - - - - 0.0500 - - - - - - - - 0.0003 0.0007 0.0008 0.0007 0.0002 - - - - - - - - 0.0667 - - - - - - - - 0.0003 0.0007 0.0008 0.0007 0.0002 - - - - - - - - 0.0833 - - - - - - - - 0.0003 0.0007 0.0008 0.0007 0.0002 - - - - - - - - 0.1000 - - - - - - - 0.0002 0.0004 0.0006 0.0008 0.0008 0.0002 - - - - - - - - 0.1167 - - - - - - - 0.0002 0.0004 0.0006 0.0008 0.0008 0.0002 - - - - - - - - 0.1333 - - - - - - - 0.0002 0.0004 0.0006 0.0008 0.0008 0.0002 - - - - - - - - 0.1500 - - - - - - - 0.0002 0.0004 0.0006 0.0008 0.0008 0.0002 - - - - - - - - USER'S GUIDE 0.1667 - - - - - - - 0.0002 0.0004 0.0006 0.0008 0.0008 0.0002 - - - - - - - - 0.1833 - - - - - - 0.0002 0.0002 0.0004 0.0008 0.0012 0.0010 0.0004 0.0002 - - - - - - - 0.2000 - - - - - - 0.0002 0.0002 0.0004 0.0008 0.0012 0.0010 0.0004 0.0002 - - - - - - - 0.2167 - - - - - - 0.0002 0.0002 0.0004 0.0008 0.0012 0.0010 0.0004 0.0002 - - - - - - - 0.2333 - - - - - - 0.0002 0.0002 0.0004 0.0008 0.0012 0.0010 0.0004 0.0002 - - - - - - - 0.2500 - - - - - - 0.0002 0.0002 0.0004 0.0008 0.0012 0.0010 0.0004 0.0002 - - - - - - - 0.2667 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0014 0.0010 0.0004 0.0002 - - - - - - - 0.2833 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0014 0.0010 0.0004 0.0002 - - - - - - - 0.3000 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0014 0.0010 0.0004 0.0002 - - - - - - - 0.3167 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0014 0.0010 0.0004 0.0002 - - - - - - - 0.3333 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0014 0.0010 0.0004 0.0002 - - - - - - - 0.3500 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0016 0.0012 0.0004 - - - - - - - - 0.3667 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0016 0.0012 0.0004 - - - - - - - - 0.3833 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0016 0.0012 0.0004 - - - - - - - - 0.4000 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0016 0.0012 0.0004 - - - - - - - - 0.4167 - - - - - - 0.0002 0.0002 0.0004 0.0010 0.0016 0.0012 0.0004 - - - - - - - - 0.4333 - - - - - - 0.0002 0.0002 0.0004 0.0012 0.0018 0.0014 0.0004 - - - - - - - - 0.4500 - - - - - - 0.0002 0.0002 0.0004 0.0012 0.0018 0.0014 0.0004 - - - - - - - - 0.4667 - - - - - - 0.0002 0.0002 0.0004 0.0012 0.0018 0.0014 0.0004 - - - - - - - - 0.4833 - - - - - - 0.0002 0.0002 0.0004 0.0012 0.0018 0.0014 0.0004 - - - - - - - - 0.5000 - - - - - - 0.0002 0.0002 0.0004 0.0012 0.0018 0.0014 0.0004 - - - - - - - - 0.5167 - - - - - - 0.0002 0.0002 0.0004 0.0014 0.0022 0.0016 0.0004 - - - - - - - - 0.5333 - - - - - - 0.0002 0.0002 0.0004 0.0014 0.0022 0.0016 0.0004 - - - - - - - - 0.5500 - - - - - - 0.0002 0.0002 0.0004 0.0014 0.0022 0.0016 0.0004 - - - - - - - - 0.5667 - - - - - - 0.0002 0.0002 0.0004 0.0014 0.0022 0.0016 0.0004 - - - - - - - - 0.5833 - - - - - - 0.0002 0.0002 0.0004 0.0014 0.0022 0.0016 0.0004 - - - - - - - - 0.6000 - - - - - - - 0.0002 0.0004 0.0020 0.0022 0.0020 0.0004 - - - - - - - - 0.6167 - - - - - - - 0.0002 0.0004 0.0020 0.0022 0.0020 0.0004 - - - - - - - - 0.6333 - - - - - - - 0.0002 0.0004 0.0020 0.0022 0.0020 0.0004 - - - - - - - - 0.6500 - - - - - - - 0.0002 0.0004 0.0020 0.0022 0.0020 0.0004 - - - - - - - - 0.6667 - - - - - - - 0.0002 0.0004 0.0020 0.0022 0.0020 0.0004 - - - - - - - - 0.6833 - - - - - - 0.0002 0.0002 0.0004 0.0020 0.0024 0.0022 0.0002 - - - - - - - - 0.7000 - - - - - - 0.0002 0.0002 0.0004 0.0020 0.0024 0.0022 0.0002 - - - - - - - - 0.7167 - - - - - - 0.0002 0.0002 0.0004 0.0020 0.0024 0.0022 0.0002 - - - - - - - - 0.7333 - - - - - - 0.0002 0.0002 0.0004 0.0020 0.0024 0.0022 0.0002 - - - - - - - - 0.7500 - - - - - - 0.0003 0.0003 0.0006 0.0030 0.0035 0.0033 0.0003 - - - - - - - - 0.7667 - - - - - - 0.0001 0.0001 0.0002 0.0021 0.0038 0.0021 0.0002 - - - - - - - - 0.7833 - - - - - - 0.0001 0.0001 0.0003 0.0033 0.0059 0.0033 0.0003 - - - - - - - - 0.8000 - - - - - - 0.0001 0.0001 0.0003 0.0033 0.0059 0.0033 0.0003 - - - - - - - - 0.8167 - - - - - - 0.0001 0.0001 0.0002 0.0026 0.0046 0.0026 0.0002 - - - - - - - - 0.8333 - - - - - - 0.0001 0.0001 0.0002 0.0027 0.0048 0.0027 0.0002 - - - - - - - - 0.8500 - - - - - 0.0001 0.0001 0.0001 0.0003 0.0055 0.0156 0.0055 0.0003 - - - - - - - - 0.8667 - - - - - 0.0001 0.0001 0.0001 0.0002 0.0040 0.0113 0.0040 0.0002 - - - - - - - - 0.8833 - - - - - 0.0001 0.0001 0.0001 0.0003 0.0052 0.0146 0.0052 0.0003 - - - - - - - - 0.9000 - - - - - 0.0001 0.0001 0.0001 0.0003 0.0065 0.0184 0.0065 0.0003 - - - - - - - - 0.9167 - - - - - 0.0001 0.0001 0.0001 0.0004 0.0073 0.0207 0.0073 0.0004 - - - - - - - - 0.9333 - - - - - - - - 0.0003 0.0070 0.0225 0.0080 0.0004 0.0001 - - - - - - - 0.9500 - - - - - - - - 0.0004 0.0092 0.0294 0.0105 0.0006 0.0002 - - - - - - - 0.9667 - - - - - - - - 0.0004 0.0104 0.0333 0.0119 0.0006 0.0002 - - - - - - - 0.9833 - - - - - - - - 0.0005 0.0127 0.0406 0.0145 0.0008 0.0003 - - - - - - - 1.0000 - - - - - - - - 0.0017 0.0417 0.1339 0.0476 0.0025 0.0008 - - - - - - - 1.0167 - - - - - - - - 0.0006 0.0116 0.0385 0.0153 0.0006 0.0006 - - - - - - - 1.0333 - - - - - - - - 0.0003 0.0055 0.0184 0.0073 0.0003 0.0003 - - - - - - - 1.0500 - - - - - - - - 0.0001 0.0019 0.0064 0.0026 0.0001 0.0001 - - - - - - - 1.0667 - - - - - - - - - 0.0005 0.0018 0.0007 - - - - - - - - - 1.0833 - - - - - - - - - 0.0002 0.0008 0.0003 - - - - - - - - - 1.1000 - - - - - - - - - - - - - - - - - - - - - Note: entries are the proportion of total vehicle-hours on the link that fall in each speed/acceleration category. Columns are the acceleration rate category in units of miles per hour per second. Rows are the speed category expressed as a ratio of the link free-flow speed. Spd/FreSpd = ratio of speed over free-flow speed.

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21 TABLE 8 Vehicle modal activity for congested freeway sections ACCELERATION (mph/sec) Spd/FreSpd -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 0.0000 - - - - - 0.0002 0.0004 0.0008 0.0017 0.0025 0.0443 - - - - - - - - - 0.0167 - - - - - 0.0001 0.0001 0.0005 0.0010 0.0015 0.0013 0.0019 - - - - - - - - 0.0333 - - - - - - 0.0002 0.0006 0.0008 0.0023 0.0025 0.0010 0.0017 - - - - - - - 0.0500 - - - - - 0.0001 0.0002 0.0003 0.0011 0.0030 0.0049 0.0016 0.0010 0.0010 - - - - - - 0.0667 - - - - - 0.0001 0.0006 0.0006 0.0023 0.0054 0.0122 0.0033 0.0013 0.0005 0.0007 - - - - - 0.0833 - - - - - 0.0002 0.0004 0.0005 0.0022 0.0057 0.0163 0.0056 0.0020 0.0006 0.0003 0.0002 - - - - 0.1000 - - - - - 0.0001 0.0002 0.0010 0.0018 0.0044 0.0126 0.0053 0.0013 0.0006 0.0003 0.0001 - - - - 0.1167 - - - - - - 0.0003 0.0007 0.0015 0.0039 0.0095 0.0052 0.0017 0.0005 0.0002 0.0001 - - - - 0.1333 - - - - - 0.0001 0.0003 0.0006 0.0017 0.0038 0.0091 0.0049 0.0015 0.0006 0.0002 - - - - - 0.1500 - - - - - 0.0001 0.0004 0.0007 0.0018 0.0039 0.0080 0.0042 0.0018 0.0006 0.0003 - - - - - USER'S GUIDE 0.1667 - - - - - 0.0001 0.0003 0.0009 0.0022 0.0051 0.0100 0.0061 0.0023 0.0007 0.0002 0.0001 - - - - 0.1833 - - - - - - 0.0003 0.0007 0.0014 0.0044 0.0090 0.0046 0.0017 0.0006 0.0002 - - - - - 0.2000 - - - - - 0.0001 0.0003 0.0007 0.0016 0.0040 0.0094 0.0047 0.0021 0.0006 0.0001 - - - - - 0.2167 - - - - - 0.0002 0.0006 0.0009 0.0026 0.0071 0.0126 0.0068 0.0031 0.0008 0.0002 - - - - - 0.2333 - - - - - - 0.0004 0.0005 0.0016 0.0047 0.0085 0.0056 0.0023 0.0006 0.0001 - - - - - 0.2500 - - - - - 0.0001 0.0003 0.0009 0.0024 0.0054 0.0122 0.0054 0.0027 0.0006 0.0002 - - - - - 0.2667 - - - - - 0.0001 0.0002 0.0005 0.0016 0.0043 0.0089 0.0053 0.0022 0.0007 0.0001 0.0001 - - - - 0.2833 - - - - - 0.0001 0.0003 0.0008 0.0018 0.0050 0.0113 0.0052 0.0022 0.0008 0.0001 - - - - - 0.3000 - - - - 0.0001 - 0.0002 0.0007 0.0015 0.0048 0.0106 0.0057 0.0021 0.0004 0.0001 - - - - - 0.3167 - - - - 0.0001 - 0.0003 0.0008 0.0017 0.0044 0.0107 0.0056 0.0020 0.0006 0.0001 - - - - - 0.3333 - - - - - - 0.0003 0.0007 0.0021 0.0053 0.0125 0.0066 0.0026 0.0008 0.0001 - - - - - 0.3500 - - - - - 0.0001 0.0004 0.0005 0.0013 0.0045 0.0125 0.0059 0.0024 0.0004 - - - - - - 0.3667 - - - - 0.0001 0.0001 0.0002 0.0004 0.0025 0.0069 0.0144 0.0075 0.0025 0.0008 - - - - - - 0.3833 - - - - - 0.0001 0.0002 0.0004 0.0012 0.0038 0.0107 0.0056 0.0020 0.0004 0.0001 - - - - - 0.4000 - - - - - - 0.0003 0.0004 0.0015 0.0047 0.0093 0.0050 0.0020 0.0003 0.0001 - - - - - 0.4167 - - - - - - 0.0001 0.0002 0.0012 0.0043 0.0115 0.0059 0.0018 0.0003 0.0001 - - - - - 0.4333 - - - - - 0.0002 0.0002 0.0004 0.0014 0.0042 0.0130 0.0066 0.0014 0.0003 0.0001 - - - - - 0.4500 - - - - - - 0.0002 0.0003 0.0012 0.0034 0.0092 0.0045 0.0017 0.0003 - - - - - - 0.4667 - - - - - - 0.0002 0.0004 0.0009 0.0033 0.0091 0.0046 0.0011 0.0002 - - - - - - 0.4833 - - - - - 0.0001 0.0002 0.0004 0.0010 0.0033 0.0076 0.0045 0.0014 0.0003 - - - - - - 0.5000 - - - - 0.0001 0.0001 0.0002 0.0003 0.0012 0.0045 0.0105 0.0055 0.0014 0.0003 0.0001 - - - - - 0.5167 - - - - - 0.0001 0.0002 0.0004 0.0013 0.0034 0.0109 0.0051 0.0013 0.0003 - - - - - - 0.5333 - - - - - - 0.0001 0.0002 0.0005 0.0025 0.0077 0.0038 0.0008 0.0002 0.0001 - - - - - 0.5500 - - - - - - 0.0002 0.0003 0.0007 0.0028 0.0067 0.0039 0.0012 0.0002 - - - - - - 0.5667 - - - - - 0.0001 0.0001 0.0004 0.0006 0.0019 0.0063 0.0032 0.0007 0.0001 - - - - - - 0.5833 - - - - - 0.0001 - 0.0003 0.0006 0.0015 0.0047 0.0029 0.0009 0.0001 - - - - - - 0.6000 - - - - - 0.0001 0.0002 0.0002 0.0006 0.0023 0.0080 0.0037 0.0009 0.0001 - - - - - - 0.6167 - - - - - - 0.0002 0.0003 0.0006 0.0020 0.0064 0.0033 0.0005 0.0001 - - - - - - 0.6333 - - - - - - 0.0001 0.0001 0.0006 0.0015 0.0057 0.0026 0.0008 0.0001 - - - - - - 0.6500 - - - - - - - 0.0002 0.0009 0.0022 0.0054 0.0036 0.0011 0.0002 - - - - - - 0.6667 - - - - - - - 0.0002 0.0001 0.0007 0.0022 0.0012 0.0003 0.0001 - - - - - - 0.6833 - - - - - - 0.0001 0.0001 0.0002 0.0009 0.0035 0.0014 0.0003 - - - - - - - 0.7000 - - - - - - - 0.0001 0.0006 0.0011 0.0033 0.0017 0.0006 0.0001 - - - - - - 0.7167 - - - - - - 0.0001 0.0001 0.0004 0.0013 0.0027 0.0018 0.0004 0.0001 - - - - - - 0.7333 - - - - - - - 0.0001 0.0005 0.0015 0.0035 0.0019 0.0006 - - - - - - - 0.7500 - - - - - - 0.0001 0.0002 0.0003 0.0013 0.0044 0.0023 0.0004 - - - - - - - 0.7667 - - - - - 0.0001 0.0001 0.0002 0.0002 0.0020 0.0050 0.0021 0.0003 0.0001 - - - - - - 0.7833 - - - - - - 0.0001 0.0002 0.0006 0.0016 0.0046 0.0023 0.0007 0.0001 - - - - - - 0.8000 - - - - - - - 0.0002 0.0002 0.0014 0.0048 0.0017 0.0006 - - - - - - - 0.8167 - - - - - - 0.0001 0.0001 0.0002 0.0013 0.0043 0.0017 0.0003 0.0001 - - - - - - 0.8333 - - - - - - - 0.0001 - 0.0004 0.0019 0.0006 0.0001 - - - - - - - 0.8500 - - - - - - - - - - - - - - - - - - - - 0.8667 - - - - - - - - - - - - - - - - - - - - 0.8833 - - - - - - - - - - - - - - - - - - - - 0.9000 - - - - - - - - - - - - - - - - - - - - 0.9167 - - - - - - - - - - - - - - - - - - - - 0.9333 - - - - - - - - - - - - - - - - - - - - 0.9500 - - - - - - - - - - - - - - - - - - - - 0.9667 - - - - - - - - - - - - - - - - - - - - 0.9833 - - - - - - - - - - - - - - - - - - - - 1.0000 - - - - - - - - - - - - - - - - - - - - 1.0167 - - - - - - - - - - - - - - - - - - - - 1.0333 - - - - - - - - - - - - - - - - - - - - 1.0500 - - - - - - - - - - - - - - - - - - - - 1.0667 - - - - - - - - - - - - - - - - - - - - 1.0833 - - - - - - - - - - - - - - - - - - - - 1.1000 - - - - - - - - - - - - - - - - - - - - Note: entries are the proportion of total vehicle-hours on the link that fall in each speed/acceleration category. Columns are the acceleration rate category in units of miles per hour per second. Rows are the speed category expressed as a ratio of the link free-flow speed. Spd/FreSpd = ratio of speed over free-flow speed.

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22 TABLE 9 Vehicle modal activity for uncongested arterials ACCELERATION (mph/sec) Spd/FreSpd -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 0.000 - - - - - - - - - - 0.2006 - - - - - - - - - 0.0286 - - - - - 0.0001 - - 0.0008 0.0005 0.0009 0.0005 0.0001 0.0002 0.0001 0.0005 - - - - 0.0571 - - - - - 0.0002 - - 0.0015 0.0010 0.0018 0.0009 0.0002 0.0004 0.0001 0.0011 - - - - 0.0857 - - - - - 0.0002 - - 0.0015 0.0010 0.0018 0.0009 0.0002 0.0004 0.0001 0.0011 - - - - 0.1143 - - - - - 0.0002 - - 0.0015 0.0010 0.0018 0.0009 0.0002 0.0004 0.0001 0.0011 - - - - 0.1429 - - - - - 0.0002 - - 0.0015 0.0010 0.0018 0.0009 0.0002 0.0004 0.0001 0.0011 - - - - 0.1714 - - - - - 0.0002 0.0001 0.0003 0.0012 0.0009 0.0020 0.0012 0.0005 0.0006 0.0006 0.0005 0.0002 - - - 0.2000 - - - - - 0.0002 0.0002 0.0003 0.0014 0.0011 0.0023 0.0014 0.0005 0.0007 0.0007 0.0006 0.0002 - - - 0.2286 - - - - - 0.0002 0.0002 0.0003 0.0014 0.0011 0.0023 0.0014 0.0005 0.0007 0.0007 0.0006 0.0002 - - - 0.2571 - - - - - 0.0002 0.0002 0.0003 0.0014 0.0011 0.0023 0.0014 0.0005 0.0007 0.0007 0.0006 0.0002 - - - USER'S GUIDE 0.2857 - - - - - 0.0002 0.0002 0.0003 0.0014 0.0011 0.0023 0.0014 0.0005 0.0007 0.0007 0.0006 0.0002 - - - 0.3143 - - - - - 0.0002 0.0004 0.0004 0.0013 0.0010 0.0016 0.0010 0.0004 0.0011 0.0011 0.0004 0.0003 - - - 0.3429 - - - - - 0.0002 0.0004 0.0004 0.0012 0.0009 0.0015 0.0010 0.0004 0.0010 0.0011 0.0004 0.0003 - - - 0.3714 - - - - - 0.0002 0.0004 0.0004 0.0012 0.0009 0.0015 0.0010 0.0004 0.0010 0.0011 0.0004 0.0003 - - - 0.4000 - - - - - 0.0002 0.0004 0.0004 0.0012 0.0009 0.0015 0.0010 0.0004 0.0010 0.0011 0.0004 0.0003 - - - 0.4286 - - - - - 0.0002 0.0004 0.0004 0.0012 0.0009 0.0015 0.0010 0.0004 0.0010 0.0011 0.0004 0.0003 - - - 0.4571 - - - - - 0.0002 0.0005 0.0003 0.0012 0.0009 0.0018 0.0011 0.0005 0.0028 0.0002 - 0.0003 - - - 0.4857 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0010 0.0020 0.0012 0.0006 0.0031 0.0002 - 0.0003 - - - 0.5143 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0010 0.0020 0.0012 0.0006 0.0031 0.0002 - 0.0003 - - - 0.5429 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0010 0.0020 0.0012 0.0006 0.0031 0.0002 - 0.0003 - - - 0.5714 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0010 0.0020 0.0012 0.0006 0.0031 0.0002 - 0.0003 - - - 0.6000 - - - - - 0.0001 0.0004 0.0004 0.0011 0.0009 0.0020 0.0022 0.0019 0.0025 - - - - - - 0.6286 - - - - - 0.0002 0.0005 0.0004 0.0012 0.0009 0.0022 0.0024 0.0020 0.0027 - - - - - - 0.6571 - - - - - 0.0002 0.0005 0.0004 0.0012 0.0009 0.0022 0.0024 0.0020 0.0027 - - - - - - 0.6857 - - - - - 0.0002 0.0005 0.0004 0.0012 0.0009 0.0022 0.0024 0.0020 0.0027 - - - - - - 0.7143 - - - - - 0.0002 0.0005 0.0004 0.0012 0.0009 0.0022 0.0024 0.0020 0.0027 - - - - - - 0.7429 - - - - - 0.0001 0.0005 0.0003 0.0010 0.0009 0.0043 0.0065 0.0025 0.0006 - - - - - - 0.7714 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0012 0.0054 0.0081 0.0031 0.0008 - - - - - - 0.8000 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0012 0.0054 0.0081 0.0031 0.0008 - - - - - - 0.8286 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0012 0.0054 0.0081 0.0031 0.0008 - - - - - - 0.8571 - - - - - 0.0002 0.0006 0.0003 0.0013 0.0012 0.0054 0.0081 0.0031 0.0008 - - - - - - 0.8857 - - - - - 0.0001 0.0003 0.0002 0.0010 0.0020 0.0209 0.0175 0.0010 - - - - - - - 0.9143 - - - - - 0.0001 0.0003 0.0002 0.0012 0.0023 0.0253 0.0198 0.0011 - - - - - - - 0.9429 - - - - - 0.0002 0.0005 0.0004 0.0019 0.0039 0.0395 0.0330 0.0018 0.0001 - - - - - - 0.9714 - - - - - 0.0001 0.0004 0.0003 0.0015 0.0031 0.0316 0.0264 0.0015 0.0001 - - - - - - 1.0000 - - - - - 0.0001 0.0004 0.0003 0.0015 0.0031 0.0316 0.0264 0.0015 0.0001 - - - - - - 1.0286 - - - - - 0.0001 0.0003 0.0003 0.0011 0.0016 0.0214 0.0172 0.0002 - - - - - - - 1.0571 - - - - - - 0.0001 0.0001 0.0005 0.0007 0.0098 0.0079 0.0001 - - - - - - - 1.0857 - - - - - - 0.0001 0.0001 0.0005 0.0007 0.0098 0.0079 0.0001 - - - - - - - 1.1143 - - - - - - 0.0001 0.0001 0.0005 0.0007 0.0098 0.0079 0.0001 - - - - - - - 1.1429 - - - - - - 0.0001 0.0001 0.0005 0.0007 0.0098 0.0079 0.0001 - - - - - - - 1.1714 - - - - - 0.0001 0.0001 0.0001 0.0003 0.0002 0.0073 0.0038 - - - - - - - - 1.2000 - - - - - - - - 0.0001 0.0001 0.0027 0.0014 - - - - - - - - 1.2286 - - - - - - - - 0.0001 0.0001 0.0027 0.0014 - - - - - - - - 1.2571 - - - - - - - - 0.0001 0.0001 0.0027 0.0014 - - - - - - - - 1.2857 - - - - - - - - 0.0001 0.0001 0.0027 0.0014 - - - - - - - - 1.3143 - - - - - - - - - 0.0001 0.0015 0.0011 - - - - - - - - 1.3429 - - - - - - - - - 0.0001 0.0008 0.0006 - - - - - - - - 1.3714 - - - - - - - - - 0.0001 0.0008 0.0006 - - - - - - - - 1.4000 - - - - - - - - - - 0.0006 0.0005 - - - - - - - - 1.4286 - - - - - - - - - - 0.0006 0.0005 - - - - - - - - 1.4571 - - - - - - - - - - - - - - - - - - - - 1.4857 - - - - - - - - - - - - - - - - - - - - 1.5143 - - - - - - - - - - - - - - - - - - - - 1.5429 - - - - - - - - - - - - - - - - - - - - 1.5714 - - - - - - - - - - - - - - - - - - - - 1.6000 - - - - - - - - - - - - - - - - - - - - 1.6286 - - - - - - - - - - - - - - - - - - - - 1.6571 - - - - - - - - - - - - - - - - - - - - 1.6857 - - - - - - - - - - - - - - - - - - - - 1.7143 - - - - - - - - - - - - - - - - - - - - 1.7429 - - - - - - - - - - - - - - - - - - - - 1.7714 - - - - - - - - - - - - - - - - - - - - 1.8000 - - - - - - - - - - - - - - - - - - - - 1.8286 - - - - - - - - - - - - - - - - - - - - 1.8571 - - - - - - - - - - - - - - - - - - - - 1.8857 - - - - - - - - - - - - - - - - - - - - Note: entries are the proportion of total vehicle-hours on the link that fall in each speed/acceleration category. Columns are the acceleration rate category in units of miles per hour per second. Rows are the speed category expressed as a ratio of the link free-flow speed. Spd/FreSpd = ratio of speed over free-flow speed.

OCR for page 23
23 TABLE 10 Vehicle modal activity for congested arterials Spd/FreSpd -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 0.0000 - - - - - - - - - - 0.5317 - - - - - - - 0.0286 - - - - - 0.0001 - - 0.0013 0.0006 0.0007 0.0002 0.0001 0.0003 0.0001 0.0009 - - 0.0571 - - - - - 0.0003 - - 0.0025 0.0012 0.0013 0.0003 0.0003 0.0006 0.0002 0.0017 - - 0.0857 - - - - - 0.0003 - - 0.0025 0.0012 0.0013 0.0003 0.0003 0.0006 0.0002 0.0017 - - 0.1143 - - - - - 0.0003 - - 0.0025 0.0012 0.0013 0.0003 0.0003 0.0006 0.0002 0.0017 - - 0.1429 - - - - - 0.0003 - - 0.0025 0.0012 0.0013 0.0003 0.0003 0.0006 0.0002 0.0017 - - 0.1714 - - - - - 0.0001 0.0001 0.0007 0.0017 0.0008 0.0018 0.0012 0.0005 0.0009 0.0010 0.0004 0.0002 - 0.2000 - - - - - 0.0001 0.0001 0.0008 0.0019 0.0009 0.0019 0.0013 0.0006 0.0010 0.0011 0.0005 0.0003 - 0.2286 - - - - - 0.0001 0.0001 0.0008 0.0019 0.0009 0.0019 0.0013 0.0006 0.0010 0.0011 0.0005 0.0003 - 0.2571 - - - - - 0.0001 0.0001 0.0008 0.0019 0.0009 0.0019 0.0013 0.0006 0.0010 0.0011 0.0005 0.0003 - 0.2857 - - - - - 0.0001 0.0001 0.0008 0.0019 0.0009 0.0019 0.0013 0.0006 0.0010 0.0011 0.0005 0.0003 - 0.3143 - - - - - 0.0002 0.0009 0.0007 0.0013 0.0007 0.0012 0.0008 0.0002 0.0017 0.0014 0.0003 0.0004 - 0.3429 - - - - - 0.0002 0.0009 0.0007 0.0012 0.0006 0.0012 0.0007 0.0002 0.0016 0.0013 0.0003 0.0004 - 0.3714 - - - - - 0.0002 0.0009 0.0007 0.0012 0.0006 0.0012 0.0007 0.0002 0.0016 0.0013 0.0003 0.0004 - 0.4000 - - - - - 0.0002 0.0009 0.0007 0.0012 0.0006 0.0012 0.0007 0.0002 0.0016 0.0013 0.0003 0.0004 - 0.4286 - - - - - 0.0002 0.0009 0.0007 0.0012 0.0006 0.0012 0.0007 0.0002 0.0016 0.0013 0.0003 0.0004 - 0.4571 - - - - - 0.0002 0.0010 0.0005 0.0012 0.0006 0.0007 0.0008 0.0008 0.0040 0.0002 0.0001 0.0003 - 0.4857 - - - - - 0.0002 0.0011 0.0006 0.0014 0.0007 0.0008 0.0008 0.0009 0.0045 0.0002 0.0001 0.0003 - 0.5143 - - - - - 0.0002 0.0011 0.0006 0.0014 0.0007 0.0008 0.0008 0.0009 0.0045 0.0002 0.0001 0.0003 - USER'S GUIDE 0.5429 - - - - - 0.0002 0.0011 0.0006 0.0014 0.0007 0.0008 0.0008 0.0009 0.0045 0.0002 0.0001 0.0003 - 0.5714 - - - - - 0.0002 0.0011 0.0006 0.0014 0.0007 0.0008 0.0008 0.0009 0.0045 0.0002 0.0001 0.0003 - 0.6000 - - - - - 0.0002 0.0009 0.0003 0.0012 0.0005 0.0010 0.0035 0.0027 0.0019 - - 0.0001 - 0.6286 - - - - - 0.0002 0.0010 0.0003 0.0012 0.0006 0.0011 0.0037 0.0029 0.0020 - - 0.0001 - 0.6571 - - - - - 0.0002 0.0010 0.0003 0.0012 0.0006 0.0011 0.0037 0.0029 0.0020 - - 0.0001 - 0.6857 - - - - - 0.0002 0.0010 0.0003 0.0012 0.0006 0.0011 0.0037 0.0029 0.0020 - - 0.0001 - 0.7143 - - - - - 0.0002 0.0010 0.0003 0.0012 0.0006 0.0011 0.0037 0.0029 0.0020 - - 0.0001 - 0.7429 - - - - - 0.0001 0.0006 0.0003 0.0005 0.0007 0.0082 0.0075 0.0019 0.0001 - - - - 0.7714 - - - - - 0.0001 0.0008 0.0004 0.0007 0.0009 0.0110 0.0101 0.0025 0.0002 - - - - 0.8000 - - - - - 0.0001 0.0008 0.0004 0.0007 0.0009 0.0110 0.0101 0.0025 0.0002 - - - - 0.8286 - - - - - 0.0001 0.0008 0.0004 0.0007 0.0009 0.0110 0.0101 0.0025 0.0002 - - - - 0.8571 - - - - - 0.0001 0.0008 0.0004 0.0007 0.0009 0.0110 0.0101 0.0025 0.0002 - - - - 0.8857 - - - - - 0.0001 0.0004 0.0002 0.0009 0.0005 0.0069 0.0094 0.0005 - - - - - 0.9143 - - - - - - 0.0002 0.0001 0.0004 0.0002 0.0031 0.0042 0.0002 - - - - - 0.9429 - - - - - 0.0001 0.0003 0.0002 0.0007 0.0004 0.0051 0.0070 0.0004 - - - - - 0.9714 - - - - - 0.0001 0.0002 0.0001 0.0006 0.0003 0.0041 0.0056 0.0003 - - - - - 1.0000 - - - - - 0.0001 0.0002 0.0001 0.0006 0.0003 0.0041 0.0056 0.0003 - - - - - 1.0286 - - - - - 0.0001 0.0001 0.0001 0.0003 0.0003 0.0029 0.0033 - - - - - - 1.0571 - - - - - - - - 0.0001 0.0001 0.0011 0.0012 - - - - - - 1.0857 - - - - - - - - 0.0001 0.0001 0.0011 0.0012 - - - - - - 1.1143 - - - - - - - - 0.0001 0.0001 0.0011 0.0012 - - - - - - 1.1429 - - - - - - - - 0.0001 0.0001 0.0011 0.0012 - - - - - - 1.1714 - - - - - - - - - 0.0001 0.0004 0.0009 - - - - - - 1.2000 - - - - - - - - - - 0.0001 0.0002 - - - - - - 1.2286 - - - - - - - - - - 0.0001 0.0002 - - - - - - 1.2571 - - - - - - - - - - 0.0001 0.0002 - - - - - - 1.2857 - - - - - - - - - - 0.0001 0.0002 - - - - - - 1.3143 - - - - - - - - - - - - - - - - - - 1.3429 - - - - - - - - - - - - - - - - - - 1.3714 - - - - - - - - - - - - - - - - - - 1.4000 - - - - - - - - - - - - - - - - - - 1.4286 - - - - - - - - - - - - - - - - - - 1.4571 - - - - - - - - - - - - - - - - - - 1.4857 - - - - - - - - - - - - - - - - - - 1.5143 - - - - - - - - - - - - - - - - - - 1.5429 - - - - - - - - - - - - - - - - - - 1.5714 - - - - - - - - - - - - - - - - - - 1.6000 - - - - - - - - - - - - - - - - - - 1.6286 - - - - - - - - - - - - - - - - - - 1.6571 - - - - - - - - - - - - - - - - - - 1.6857 - - - - - - - - - - - - - - - - - - 1.7143 - - - - - - - - - - - - - - - - - - 1.7429 - - - - - - - - - - - - - - - - - - 1.7714 - - - - - - - - - - - - - - - - - - 1.8000 - - - - - - - - - - - - - - - - - - 1.8286 - - - - - - - - - - - - - - - - - - 1.8571 - - - - - - - - - - - - - - - - - - 1.8857 - - - - - - - - - - - - - - - - - - 1.9143 - - - - - - - - - - - - - - - - - - 1.9429 - - - - - - - - - - - - - - - - - - Note: entries are the proportion of total vehicle-hours on the link that fall in each speed/acceleration category. Columns are the acceleration rate category in units of miles per hour per second. Rows are the speed category expressed as a ratio of the link free-flow speed. Spd/FreSpd = ratio of speed over free-flow speed.