Highway Capacity Manual 2010 Urban Street Segments This chapter has been completely rewritten.The work of the NCHRP 3-79 project has been incorporated into the chapter,providing improved methods for estimating urban street free-flow speeds and running times,along with a new method for estimating the stop rate along an urban street.In additi on,the work of the NCHRP 3-70 project has en incorporated,prov me ate trade-offs in how urban street right-of Signalized Intersections The following revisions have been made to the HCM2000 methodology .A new incremental queue accumulation method has been added to ate the d delay term and the length term.It is equivalent to the case but is more flexib le to accomm rrival d multipl ration flow rates(ie.protected-plus .An actuated controller operation modeling procedure has been added. .A left-turn lane overflow check procedure has been added. .Pedestrian and bicycle LOS methodologies relating to signalized intersections have been moved into this chapter. Unsianalized Intersections The Unsignalized Intersections ch abouts Two-Way STOP-Controlled Intersections The two-way SToP-controlled intersection methodology for the automobile mode is essentially the same as the one given in the HCM2000,except gap- acceptance parameters for six-lane streets have been added.In addition, pedestrian and bicycle LOS methodologies relating to two-way STOP-controlled intersections have been moved into this chapter. All-Way STop-Controlled Intersections The all-way sTo ame Roundabouts This chapter replaces the Hcm2000 roundabout content it is based on the work of the NCHRP 3-65 project,which developed a comprehensive database of U.S.roundabout operations and new methodologies for evaluating roundabout performance.A LOS table for roundabouts has been added. Interchange Ramp Terminals This chapter is completely updated on the basis of the NCHRP 3-60 project. What's New in the HCM 2010 Page 1-12
Highway Capacity Manual 2010 Urban Street Segments This chapter has been completely rewritten. The work of the NCHRP 3‐79 project has been incorporated into the chapter, providing improved methods for estimating urban street free‐flow speeds and running times, along with a new method for estimating the stop rate along an urban street. In addition, the work of the NCHRP 3‐70 project has been incorporated, providing a multimodal LOS methodology that can be used to evaluate trade‐offs in how urban street right‐of‐ way is allocated among the modes using the street. Signalized Intersections The following revisions have been made to the HCM2000 methodology: • A new incremental queue accumulation method has been added to calculate the d1 delay term and the Q1 length term. It is equivalent to the HCM2000 method for the idealized case but is more flexible to accommodate nonideal cases, including coordinated arrivals and multiple green periods with differing saturation flow rates (i.e., protected‐plus‐ permitted left turns and sneakers). • An actuated controller operation modeling procedure has been added. • A left‐turn lane overflow check procedure has been added. • Pedestrian and bicycle LOS methodologies relating to signalized intersections have been moved into this chapter. Unsignalized Intersections The HCM2000’s Unsignalized Intersections chapter has been split into three chapters: two‐way STOP‐controlled intersections, all‐way STOP‐controlled intersections, and roundabouts. Two-Way STOP-Controlled Intersections The two‐way STOP‐controlled intersection methodology for the automobile mode is essentially the same as the one given in the HCM2000, except gap‐ acceptance parameters for six‐lane streets have been added. In addition, pedestrian and bicycle LOS methodologies relating to two‐way STOP‐controlled intersections have been moved into this chapter. All-Way STOP-Controlled Intersections The all‐way STOP‐controlled intersection methodology is essentially the same as the one given in the HCM2000. A queue‐estimation model has been added. Roundabouts This chapter replaces the HCM2000 roundabout content. It is based on the work of the NCHRP 3‐65 project, which developed a comprehensive database of U.S. roundabout operations and new methodologies for evaluating roundabout performance. A LOS table for roundabouts has been added. Interchange Ramp Terminals This chapter is completely updated on the basis of the NCHRP 3‐60 project. What’s New in the HCM 2010 Page 1-12 Chapter 1/HCM User’s Guide December 2010
Highway Capacity Manual 2010 Off-Street Pedestrian and Bicycle Facilities The pedestrian path procedures are essentially the same as those of the HCM2000,but guidance is provided on how to apply the procedures to a wider variety of facility types.The bicycle path procedures,which were based on Dute 00, study ibrate the d in t path user groups (e.g.,inline aters anc ers)add Users Gude P3ge1-13 What's New in the HCM 2010
Highway Capacity Manual 2010 Off-Street Pedestrian and Bicycle Facilities The pedestrian path procedures are essentially the same as those of the HCM2000, but guidance is provided on how to apply the procedures to a wider variety of facility types. The bicycle path procedures, which were based on Dutch research in the HCM2000, have been updated on the basis of results of a Federal Highway Administration (FHWA) study to calibrate the Dutch model for U.S. conditions and increase the number of path user groups (e.g., inline skaters and runners) addressed by the procedures. Chapter 1/HCM User’s Guide Page 1-13 What’s New in the HCM 2010 December 2010
Highway Capacity Manual 2010 6.COMPANION DOCUMENTS Throughout its 60-year history,the HCM has been one of the fundamental but one of a number of documents that play a role in the planning design,and operation of transportation facilities and services.The HCM's scope is to provide tools to evaluate the performance of highway and street facilities in terms of operational and quality-of-service measures.This section describes companion documents to the HCM that cover important topics outside the HCM's scope. HIGHWAY SAFETY MANUAL The Highuy Safety Manual (HSM)(13)provides analytical tools and techniques for quantifying the safety effects of decisionsr sion-ma ded to nduct safetya on in n and consistent ner,thereby improving dec the basis of safety pe erf rmance A POLICY ON GEOMETRIC DESIGN OF HIGHWAYS AND STREETS The American Association of State Highway and Transportation Officials'A Policy on Geometric Design of Higheays and Streets ("Green Book")(14)provides design guidelines for roadways ranging from local streets to freeways,in both urban and rural locations.The guidelines"are intended to provide operational efficiency,comfort,safety,and convenience for the motorist"and to emphasize the need to consider other modal users of roadway facilities. MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FHWA's (MUTCD)(15)is the national stand for tra evices for any stree ave Or ng HC ol and traffic signal co s of ade road way capacity and ess restrictive intersection treatments. TRANSIT CAPACITY AND QUALITY OF SERVICE MANUAL The TCOSM(5)is the transit counterpart to the HCM.The manual contains background,statistics,and graphics on the various types of public transportation,and it provides a framework for measuring transit availability, comfort,and convenience from the passenger point of view.The manual contains quantitative techniques for calculating the capacity of bus,rail,and ferry transit services and transit stops,stations,and terminals. Companion Documents Page 1-14
Highway Capacity Manual 2010 6. COMPANION DOCUMENTS Throughout its 60‐year history, the HCM has been one of the fundamental reference works used by transportation engineers and planners. However, it is but one of a number of documents that play a role in the planning, design, and operation of transportation facilities and services. The HCM’s scope is to provide tools to evaluate the performance of highway and street facilities in terms of operational and quality‐of‐service measures. This section describes companion documents to the HCM that cover important topics outside the HCM’s scope. HIGHWAY SAFETY MANUAL The Highway Safety Manual (HSM) (13) provides analytical tools and techniques for quantifying the safety effects of decisions related to planning, design, operations, and maintenance. The information in the HSM is provided to assist agencies as they integrate safety into their decision‐making processes. It is a nationally used resource document intended to help transportation professionals conduct safety analyses in a technically sound and consistent manner, thereby improving decisions made on the basis of safety performance. A POLICY ON GEOMETRIC DESIGN OF HIGHWAYS AND STREETS The American Association of State Highway and Transportation Officials’ A Policy on Geometric Design of Highways and Streets (“Green Book”) (14) provides design guidelines for roadways ranging from local streets to freeways, in both urban and rural locations. The guidelines “are intended to provide operational efficiency, comfort, safety, and convenience for the motorist” and to emphasize the need to consider other modal users of roadway facilities. MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES FHWA’s Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) (15) is the national standard for traffic control devices for any street, highway, or bicycle trail open to public travel. Of particular interest to HCM users are the sections of the MUTCD pertaining to warrants for all‐way STOP control and traffic signal control, signing and markings to designate lanes at intersections, and associated considerations of adequate roadway capacity and less restrictive intersection treatments. TRANSIT CAPACITY AND QUALITY OF SERVICE MANUAL The TCQSM (5) is the transit counterpart to the HCM. The manual contains background, statistics, and graphics on the various types of public transportation, and it provides a framework for measuring transit availability, comfort, and convenience from the passenger point of view. The manual contains quantitative techniques for calculating the capacity of bus, rail, and ferry transit services and transit stops, stations, and terminals. Companion Documents Page 1-14 Chapter 1/HCM User’s Guide December 2010
Highway Capacity Manual 2010 7.REFERENCES 1.Highay Capacity Manual:Practical Applications of Research.Bureau of Public Roads,U.S.Department of Commerce,Washington,D.C.,1950. 3.Special Report 209:Highay Capacity Manual.TRB,National Research Council, Washington,D.C.1985. 5.Kittelson&Associates,Inc.;KFH Group,Inc.Parsons Brinckerhoff Quade& Douglass,Inc.;and K.Hunter-Zaworski.TCRP Report 100:Transit Capacity 6.Kittelson,W.K.,K.G.Courage,M.D.Kyte,G.F.List,R.P.Roess,and W.M. Sampson.Highay Capacity Manual Applications Guidebook.Transportation Research Board of the National Academies,Washington,D.C,2003. www.hcmguide.com.Accessed Oct.19,2009. University of Florida Transportation Center and T-Conc Draft Material for HCMAG Case Study 6:1-465 Corridor,Indianapolis.NCHRP3 85 Working Paper No.16,Jan.5,2009. Metric Comers Washington.D.C.http://www.fhwa dot gov/aaameric ://www.fhwa.dot.gov/aaa/metricportrait.pd 9.Transportation Research Circular E-C081:A Research Program for Improvement of the Highway Capacity Manual.Transportation Research Board of the National Academies,Washington,D.C.,Dec.005. http://onlinepubs.trb.org/onlinepubs/circulars/ec081.pdf. Rt6aCy2proa 11 Dowing . M Vandehey.B andis, and J.Bonne on.NCF Level of 12.Hummer,J.E.,N.M.Rouphail,J.L.Toole,R.S.Patten,R.J.Schneider,J.S. Department of Transportation,Washington,D.C.,July 2006 13.Highay Safety Mamal,1st ed.American Association of State Highway and Transportation Officials,Washington,D.C.2010. 14 C204 ers Gde Pa9e1-15 References
Highway Capacity Manual 2010 7. REFERENCES Some of these references can be found in the Technical Reference Library in Volume 4. 1. Highway Capacity Manual: Practical Applications of Research. Bureau of Public Roads, U.S. Department of Commerce, Washington, D.C., 1950. 2. Special Report 87: Highway Capacity Manual. Highway Research Board, National Research Council, Washington, D.C., 1965. 3. Special Report 209: Highway Capacity Manual. TRB, National Research Council, Washington, D.C., 1985. 4. Highway Capacity Manual. TRB, National Research Council, Washington, D.C., 2000. 5. Kittelson & Associates, Inc.; KFH Group, Inc.; Parsons Brinckerhoff Quade & Douglass, Inc.; and K. Hunter‐Zaworski. TCRP Report 100: Transit Capacity and Quality of Service Manual, 2nd ed. Transportation Research Board of the National Academies, Washington, D.C., 2003. 6. Kittelson, W. K., K. G. Courage, M. D. Kyte, G. F. List, R. P. Roess, and W. M. Sampson. Highway Capacity Manual Applications Guidebook. Transportation Research Board of the National Academies, Washington, D.C., 2003. www.hcmguide.com. Accessed Oct. 19, 2009. 7. University of Florida Transportation Center and T‐Concepts Corporation. Draft Material for HCMAG Case Study 6: I‐465 Corridor, Indianapolis. NCHRP 3‐ 85 Working Paper No. 16, Jan. 5, 2009. 8. Metric Conversion Page. FHWA, U.S. Department of Transportation, Washington, D.C. http://www.fhwa.dot.gov/aaa/metricportrait.pdf. Accessed Oct. 19, 2009. 9. Transportation Research Circular E‐C081: A Research Program for Improvement of the Highway Capacity Manual. Transportation Research Board of the National Academies, Washington, D.C., Dec. 2005. http://onlinepubs.trb.org/onlinepubs/circulars/ec081.pdf. 10. Flannery, A., D. McLeod, and N. J. Pedersen. Customer‐Based Measures of Level of Service. ITE Journal, Vol. 76, No. 5, May 2006, pp. 17–21. 11. Dowling, R., D. Reinke, A. Flannery, P. Ryus, M. Vandehey, T. Petritsch, B. Landis, N. Rouphail, and J. Bonneson. NCHRP Report 616: Multimodal Level of Service Analysis for Urban Streets. Transportation Research Board of the National Academies, Washington, D.C., 2008. 12. Hummer, J. E., N. M. Rouphail, J. L. Toole, R. S. Patten, R. J. Schneider, J. S. Green, R. G. Hughes, and S. J. Fain. Evaluation of Safety, Design, and Operation of Shared‐Use Paths—Final Report. Report FHWA‐HRT‐05‐137. FHWA, U.S. Department of Transportation, Washington, D.C., July 2006. 13. Highway Safety Manual, 1st ed. American Association of State Highway and Transportation Officials, Washington, D.C., 2010. 14. A Policy on Geometric Design of Highways and Streets, 5th ed. American Association of State Highway and Transportation Officials, Washington, D.C., 2004. Chapter 1/HCM User’s Guide Page 1-15 References December 2010
Highway Capacity Manual 2010 15.Manual on Uniform Traffic Control Devices for Streets and Highways.Federal Highway Administration,Washington,D.C.2009. http://mutcd.fhwa.dot.gov.Accessed Feb.1,2010 References Page 1-16
Highway Capacity Manual 2010 15. Manual on Uniform Traffic Control Devices for Streets and Highways. Federal Highway Administration, Washington, D.C., 2009. http://mutcd.fhwa.dot.gov. Accessed Feb. 1, 2010. References Page 1-16 Chapter 1/HCM User’s Guide December 2010