Skip to contentUnited States Department of Transportation - Federal Highway Administration FHWA Home
Research Home
Report
This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-98-106
Date: February 1998

Capacity Analysis of Pedestrian and Bicycle Facilities

Recommended Procedures for the "Signalized Intersections" Chapter of the Highway Capacity Manual

 

6. CONCLUSIONS AND RECOMMENDATIONS

Conclusions

As a result of this research, the following conclusions are offered:

  • There is a wide variation among existing adjustments to vehicular saturation flow due to pedestrians.
  • The HCM may not accurately predict the effect of a moderate pedestrian or bicycle volume on turning traffic.
  • The procedures described herein should improve the analysis and performance of signalized intersections subject to nonmotorized interference of turning movements.

 

Recommendations

Based on the above conclusions, the following recommendations are made:

  • It is recommended that the HCM include the proposed saturation flow adjustment factors f Rpb and f Lpb to account for the effect of pedestrians and bicycles on signalized intersections.
  • It is recommended that the HCM simplify fRT to account only for the effect of radius.

 

Based on the results of the Literature Synthesis for Chapter 13, "Pedestrians," of the Highway Capacity Manual (Rouphail et al., 1998), the following additional recommendation is made:

As stated in the Recommended Procedures for Chapter 13, "Pedestrians," of the Highway Capacity Manual (Rouphail et al., 1998), it is recommended that the HCM include pedestrian delay as a primary measure of effectiveness for pedestrian street corner analysis in Chapter 13 of the HCM (Table 14). This will result in easily comparable delay-based service measures at signalized crossings from the perspective of both drivers and pedestrians.

TABLE 14 Recommended HCM pedestrian Level of Service (LOS) criteria for signalized crossing delay

LOS Average Delay Per Pedestrian (s) Likelihood of Pedestrian

Noncompliance

A

B

C

D

E

F

< 10

10-20

20-30

30-40

40-60

60

Low

 

 

Moderate

 

High

Very High

Previous | Table of Contents | Next

ResearchFHWA
FHWA
United States Department of Transportation - Federal Highway Administration