Headway distribution models of two-lane roads under mixed traffic conditions: a case study from India

European Transport Research Review

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Table 5 Comparison of headway probabilities [probability of headways less than‘t’ sec] at different lane volumes: current study and case studies with homogeneous traffic

Headway (sec)	Probability at lane volume of 600 veh/h			Probability at lane volume of 700 veh/h
Headway (sec)	Current study	Zwahlen et al. 2007 [31]	Khasnabis and Heimbach 1980 [10]	Current study	Zwahlen et al. 2007 [31]	Khasnabis and Heimbach 1980 [10]
<1.5	0.0638	0.0000	0.1714	0.0952	0.0000	0.2046
<4.5	0.2853	0.0812	0.6348	0.3574	0.0968	0.7222
<7.5	0.4215	0.1853	0.7827	0.4808	0.1926	0.8772
<10.5	0.5718	0.2134	0.8464	0.6423	0.2190	0.9358
<13.5	0.6256	0.2871	0.8896	0.7271	0.2881	0.9634
<16.5	0.7065	0.3256	0.9187	0.7499	0.3384	0.9784
<19.5	0.7565	0.4012	0.9383	0.7995	0.4285	0.9870
<22.5	0.7893	0.4115	-	0.8426	0.4369	-