PDF (DX094490.pdf) - White Rose Etheses Online
(. -c N -c0> 500 480 460 440 420 400 160 0.0 0.1 0.2 Percent of Left Turn - - - - -El - - - -S - - - - - - % ST 1.00 Qi = 500 veh/hr v 0.90 Q2 = 500 veh/hr A 0.75 a = 2.80 sec ij 0.60 = 1.68 sec 0.50 Flared Entry • Full Line Straight Entry • Broken Line 0.3 0.4 0.5 Figure 6.6 Entry FLow and Turnln9 Proportion Comparison of FLared and Straight Entries
C.. -C N-c > 1000 980 960 940 920 900 - —0 -. \ 181 0.0 0.1 0.2 Per-cent of Left Turn / - 0—. _i_ ST 1.00 01 = 1000 veh/hr v 0.90 02 = 1000 veh/hr A 0.75 ci = 3.75 sec o 0.60 = 2.60 sec 0.50 Flared Entry a Full Line Straight Entry a Broken Line 0.3 0.4 0.5 Figure 6.7 Entry Flow and Turning Proportion Comparison of Flared and Straight EntrTes
A COMPUTER SIMULATION STUDY OF THE
11 SUMMARY This thesis reports on a
iv TABLE OF CONTENTS Page No Acknow
2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9
viii LIST OF TABLES 3.1 Observed Fl
1.1 Roundabout Design 1 Intersectio
3 a modified formula was introduced
CHAPTER 2 LITERATURE REVIEW: CAPACI
(Wardrop, 1957). The investigation
9 They looked also at ways of impro
11 small-island layouts were design
13 operating under no clearly defin
where a: the critical gap (sec), NQ
where = Q e cx e -1 17 the maximum
19 The research carried out at TRRL
take account of local operating con
23 These types are illustrated in f
25 exceeded by a considerable margi
27 queues at the end and beginning
29 TYPICAL CONVENTIONAL ROUNDABOUT
EXAMPLE OF GRADE SEPARATED JUNCTION
EXAMPLES OF MINI-ROUNDABOUT LAYOUTS
"- C) 0 '.-. ) LU 0 S.- 0 C) ( j 0
38 CHAPTER 3 COLLECTION 0F DATA
40 Sheffield. It was observed that,
42 using a SONY AV342OCE portable m
44 Ecciesall Road. However, this di
46 TABLE 3.2 Day Entry Total flow F
\\ Ec.esa11 Road \"\\/i? LLjji 1lTh
\\\\\ ' \\\\ r * ' \\\_\ ' ' \\% .'
61 CHAPTER 4 GAP ACCEPTANCE CHARACT
63 this field. The conventions used
65 have been developed that use mor
67 of drivers who accept such gaps,
69 consistently accept all gaps gre
71 a merging platoon. Although they
73 They related the gap-acceptance
75 advance which rejected gaps shcu
77 proposed by Bennett (1971), Horm
larger than the respective ones for
81 The direct linear relationship i
83 mean squared errors or variances
85 produce reasonable predictions,
87 the rejected gaps. The results o
89 exclusion of top values decrease
91 definition of gap size as depend
93 4.5.8 The Effect of Assuming the
95 demonstrated on Fig. 4.8 and Fig
97 When the model was validated by
99 4.8.2.2 The Negative Exponential
101 0: the proportion of restrained
103 coefficient of the regression s
105 From the point of view of which
107 TABLE 4.1 (continued) No.1 Loca
Cl U) a) a) 0 I )1) H U) 0 U) a) '-
1 2 3 4 56789 10 2.95 2.94 2.68 2.9
Ci) (ii) 0. 113 TABLE 4.7 mean st.d
1 2 345678 9 0 2.42 2.44 2.50 2.63
1 2 3 4 5 6 7 8 9 10 2.61 2.93 2.68
(i) (ii) a 119 TABLE 4.13 mean st.d
oup 121 TABLE 4.16 no.of entries on
1 2 3 4 5 67 8 9 10 11 12 13 14 15
1 2 3 4 5 6 7 8 9 10 125 TABLE 4.21
4i -1 0 '-I- U-I a) .li.IC 127 E- .
231 GPNO(i13) = GPNO(K3)+1 NOG GPNO
43 121(SX,A1) 12 IF (A1.GE.AP) AX =
235 DELY(H2,M3) T3(i12,N3)-121(112,
82 2 237 sui entries of lane tar
108 106 CONTINUE 109 CONTINUE DO 10
CAP CAP+CA(N3) 125 CONTINUE 00 128
ci) 0 ci) a) '-I 0 a) 0 4-1 in 4-1
I-i a) 0 ci) a) $4 a) L;l 4-I 0 -'-