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Publication Number: FHWA-HRT-98-107
Date: February 1998

Capacity Analysis of Pedestrian and Bicycle Facilities

Recommended Procedures for the "Pedestrians" Chapter of the Highway Capacity Manual

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5. SUMMARY OF RECOMMENDATIONS FOR DESIGN AND/OR ANALYSIS OF PEDESTRIAN FACILITIES

 

Recommendation Page(s) Figure Table HCM Ch. 13 Subsections affected HCM variables and adjustments affected
Body ellipse for standing areas 4 2 introductory narrative only primarily a design recommendation
Body buffer zone for walking 4 walkways, street corners, crosswalks walkway LOS E/F threshold changes in Table 13–3
Crosswalk walking speeds 5 1 [Ch. 9: Methodology, Input module] new values replace 4.0 ft/s in equation (eq.) 9–8
  Ch. 13: introduction, crosswalks new values replace 4.5 ft/s in eq. 13–14
Grade and stairs walking speeds 7 walkway narrative, crosswalks speeds decrease by 0.1 m/s in eq. 13–14 with grades
Crossing speeds for platoons 7 N/A 1 no change 1
Pedestrian start–up time 7 N/A 1 no change 1
Capacity thresholds 8 walkways, street corners, crosswalks walkway LOS E/F threshold changes in Table 13–3
Temporal flow variation 8 N/A 1 no change 1
LOS (Level of Service) for walkways 11 5 4 walkways walkway LOS A/B, E/F thresholds change, Table 13–3
LOS for walkways with platoons 12,13 6 walkways new table replaces equation 13–3
LOS for transportation terminals 15 8 walkways (new measure) new table applies to terminals with platoon flow
LOS for stairs 16 9 walkways (new measure) new table applies only to stairs
LOS for crossflows 17 10 walkways (new measure) new table serves as secondary check for walkways
LOS for mixed–use paths 21 13 walkways (new measure) new table applies only to mixed–use paths
Noncompliance time adjustments 26 street corners, crosswalks minor, major red times in equations 13–6, 13–7 change;d
effective red time reduced in computing ped delay
LOS for signalized crossingsa 29 18 street corners (new measure) new table based on ped delay; space now secondary
Swept–path method for vehicle effects 30 crosswalks caution to use only under aggressive driver behavior  
LOS for unsignalized crossingsb 32,33 20 street corners (new measure) new table based on ped delay
LOS for pedestrian networksc 35,36 22 networks (new section) new table shows proposals for analysis of ped networks
Ped delay at signalized crossings 45 street corners (new measure) method for computing ped delay
Effective crosswalk time–space 48 crosswalks equation 13–13 corrected; calculated TSw will decrease
Crossing time in platoons 49, 60 crosswalks new equations replace eq. 13–14 with large platoons
Ped delay at unsignalized crossings 54 street corners (new measure) method for computing ped delay
aOffers a comparison with delay–based Level of Service for drivers computed in HCM Chapter 9, "Signalized Intersections "
bOffers a comparison with delay–based Level of Service for drivers computed in HCM Chapter 10, "Unsignalized Intersections"
cOffers a comparison with Level of Service for drivers computed in HCM Chapter 11, "Urban and Suburban Arterials"
dCurrent HCM is ambiguous regarding the definition of minor and major red times (Rmi, Rmj); therefore, the effect of the proposed noncompliance adjustments will depend on the analyst's interpretation of the HCM

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