01520120

Component

https://doi.org/10.3141/2461-17

Pedestrians crossing an urban road at undesignated places are not uncommon in developing countries such as India, and these people force motor vehicles to provide suitable gaps for their crossing. The present study demonstrates the effect of such crossings on the midblock capacity of an urban arterial road. Data were collected on 12 sections of six-lane urban arterial roads in three populous cities in India. Six sections were selected without any side friction to estimate the base value of capacity. The remaining six sections had pedestrian flow across roads at undesignated crossings. Speed and volume data were collected in the field and were used to estimate the capacity of a section. The base midblock capacity of a six-lane divided urban road was found to vary from 1,500 to 2,100 passenger car units per hour per lane in three cities. This variation was attributed to the different free-flow speeds in these cities. The effect of pedestrian cross flow on the midblock capacity of an urban road was evaluated by comparing the capacity of a section with pedestrian cross flow with that of the base section. Finally, a mathematical relation was developed between pedestrian cross flow and reduction in capacity. The results show practically no influence on capacity when pedestrian cross flow is less than 200 pedestrians per hour. The capacity, however, is reduced by 30% when pedestrian cross flow is increased to 1,360 pedestrians per hour.

01557687

14-0468

English

pp 137–144

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295550

Print

Figures (8) ; References (19) ; Tables (5)

Arterial highways; Flow speed relationships; Highway capacity; Midblock crossings; Pedestrian density; Pedestrian movement

India

Operations and Traffic Management; Pedestrians and Bicyclists; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Jan 27 2014 2:14PM

• Addressing Deficiencies in the Highway Capacity Manual Bike Level of Service Model for Arterial Roadways
• Assessment of Level of Service on Freeways by Microscopic Traffic Simulation
• Capacity Estimation for Weaving Segments Using a Lane-Changing Model
• Comparison of Estimates of Travel Time Losses on High-Capacity Roads
• Determining Level of Service on Freeways and Multilane Highways with Higher Speeds
• Developing Improved Truck Passenger Car Equivalent Values at Signalized Intersections
• Estimating the Mean Critical Gap
• Estimation of Roundabout Entry Capacity Under the Impact of Pedestrians by Applying Microscopic Simulation
• Evaluation of the 2010 Highway Capacity Manual Urban Street Free-Flow Speed Prediction Model
• Impact of Modeling Parameters on the Highway Capacity Manual–Based Procedure to Estimate Reliability of Freeway Corridors
• Investigation of Saturation Flow on Shared Right-Turn Lane at Signalized Intersections
• Lane Utilization at Two-Lane Arterial Approaches to Double Crossover Diamond Interchanges
• Method for Scenario Selection and Probability Adjustment for Reliability and Active Traffic Management Analysis in a Highway Capacity Manual Context
• New Methodology to Determine Work Zone Capacity Distribution
• Temporal and Spatial Gap Acceptance for Minor Road at Uncontrolled Intersections in India
• Traffic Congestion Evaluation Method for Urban Arterials: Case Study of Changzhou, China