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PDF (DX094490.pdf) - White Rose Etheses Online

PDF (DX094490.pdf) - White Rose Etheses Online

224 APPENDIX 1 THE

224 APPENDIX 1 THE OBSERVED DATA COLLECTED AT THREE ROUNDABOUTS IN SHEFFIELD

7 0 4 225 0 4 20 24 F re A. 1 Qb.er"jt I at t1o.r Et. Poundbojt

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    A COMPUTER SIMULATION STUDY OF THE

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    11 SUMMARY This thesis reports on a

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    iv TABLE OF CONTENTS Page No Acknow

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    2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9

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    viii LIST OF TABLES 3.1 Observed Fl

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    1.1 Roundabout Design 1 Intersectio

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    3 a modified formula was introduced

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    CHAPTER 2 LITERATURE REVIEW: CAPACI

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    (Wardrop, 1957). The investigation

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    9 They looked also at ways of impro

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    11 small-island layouts were design

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    13 operating under no clearly defin

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    where a: the critical gap (sec), NQ

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    where = Q e cx e -1 17 the maximum

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    19 The research carried out at TRRL

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    take account of local operating con

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    23 These types are illustrated in f

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    25 exceeded by a considerable margi

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    27 queues at the end and beginning

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    29 TYPICAL CONVENTIONAL ROUNDABOUT

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    EXAMPLE OF GRADE SEPARATED JUNCTION

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    EXAMPLES OF MINI-ROUNDABOUT LAYOUTS

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    "- C) 0 '.-. ) LU 0 S.- 0 C) ( j 0

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    38 CHAPTER 3 COLLECTION 0F DATA

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    40 Sheffield. It was observed that,

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    42 using a SONY AV342OCE portable m

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    44 Ecciesall Road. However, this di

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    46 TABLE 3.2 Day Entry Total flow F

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    \\ Ec.esa11 Road \"\\/i? LLjji 1lTh

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    \\\\\ ' \\\\ r * ' \\\_\ ' ' \\% .'

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    61 CHAPTER 4 GAP ACCEPTANCE CHARACT

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    63 this field. The conventions used

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    65 have been developed that use mor

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    67 of drivers who accept such gaps,

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    69 consistently accept all gaps gre

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    71 a merging platoon. Although they

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    73 They related the gap-acceptance

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    75 advance which rejected gaps shcu

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    77 proposed by Bennett (1971), Horm

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    larger than the respective ones for

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    81 The direct linear relationship i

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    83 mean squared errors or variances

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    85 produce reasonable predictions,

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    87 the rejected gaps. The results o

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    89 exclusion of top values decrease

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    91 definition of gap size as depend

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    93 4.5.8 The Effect of Assuming the

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    95 demonstrated on Fig. 4.8 and Fig

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    97 When the model was validated by

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    99 4.8.2.2 The Negative Exponential

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    101 0: the proportion of restrained

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    103 coefficient of the regression s

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    105 From the point of view of which

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    107 TABLE 4.1 (continued) No.1 Loca

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    Cl U) a) a) 0 I )1) H U) 0 U) a) '-

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    1 2 3 4 56789 10 2.95 2.94 2.68 2.9

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    Ci) (ii) 0. 113 TABLE 4.7 mean st.d

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    1 2 345678 9 0 2.42 2.44 2.50 2.63

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    1 2 3 4 5 6 7 8 9 10 2.61 2.93 2.68

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    (i) (ii) a 119 TABLE 4.13 mean st.d

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    oup 121 TABLE 4.16 no.of entries on

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    1 2 3 4 5 67 8 9 10 11 12 13 14 15

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    1 2 3 4 5 6 7 8 9 10 125 TABLE 4.21

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    4i -1 0 '-I- U-I a) .li.IC 127 E- .

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    129 TABLE 4.26 Time interval- (sec)

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    No. of passing vehicles 0. 1 2 3 4

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    ci) 4) x4-4 ..-..' .,-4 CDV) U H N

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    250 200 50 I00 50 135 o i 6 7 8 9 1

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    tag ..engfñLf Weaving Width •3/

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    0 0 1, 0 C- 4.5 4. 0 3. 5 3. 0 2.5

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    3. 5 3. 0 2.5 0 0 2. 0 1.5 141 1.5

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    U, II 114 U z isa 114 Ii. z 0 U) (/

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    145 CHAPTER 5 THE SIMULATION PROGRA

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    147 following a uniform (rectangula

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    149 Let F(t) = r, the random fracti

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    151 5. Entering or alternatively up

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    153 (b) Three initial numbers for t

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    155 vehicles are not of such length

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    U U, a Ia- LO 0.9 0.8 07 0.5 - 0.4.

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    159 CHAPTER 6 RESULTS AND COMMENTS

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    161 equivalent to the capacity of a

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    163 parameters. It was found that a

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    165 least 50% straight ahead traffi

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    167 left-turning vehicles, is not u

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    169 exhibit a minimum average delay

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    171 not operating at or near capaci

  • Page 175 and 176: Input 500 1000 1500 2000 2500 3000
  • Page 177 and 178: 4000 3500 3000 L 2500 N -c > ..2000
  • Page 179 and 180: 177 1. Ashworth and Laurence (1977)
  • Page 181 and 182: (0 C -J Lj_ o L 0 -a 3 z > 4.0 3. 5
  • Page 183 and 184: C.. -C N-c > 1000 980 960 940 920 9
  • Page 185 and 186: 0 1 U- uJ 540 520 500 480 183 0. 0
  • Page 187 and 188: N > 0 -J IL > C- C ILl 0 200 160 16
  • Page 189 and 190: C) Co 6 4 >2 -J a m C.. 0 > -I 8 18
  • Page 191 and 192: C, Co >\ CD 0 CD CD S 15 10 189 % S
  • Page 193 and 194: C) •1 > 0 L. > 10 5 191 ST 101 =
  • Page 195 and 196: U (0 >.' -J C, (I > -J 20 10 193 %
  • Page 197 and 198: ' -J a m C.. > 10 5 195 Qi = 500 ve
  • Page 199 and 200: 0 CD CD Ii >\ CD CD CD CD C.. CD >
  • Page 201 and 202: 0 (U (U (U Cj (U (U > -J (U 20 10 0
  • Page 203 and 204: 0 I. >' Oi C.. > -J 0 '-0 30 20 10
  • Page 205 and 206: 0 60 40 IT 203 cx = 2.50 sec 500 =
  • Page 207 and 208: C) (0 60 40 20 205 02 = 3.50 sec c.
  • Page 209 and 210: t!) 60 40 >20 207 Beta 01 = 1000 ve
  • Page 211 and 212: 0 0 60 40 120 209 Beta Q1 = 3000 ve
  • Page 213 and 214: .0 60 40 11 1.5 211 Alpha Q1 = 1000
  • Page 215 and 216: C) Co 60 40 20 213 ALpha Q1 = 3000
  • Page 217 and 218: 215 A computer simulation model has
  • Page 219 and 220: 217 hou1d. Therefore any change in
  • Page 221 and 222: 219 Ashworth, R. and M.Z.H. Mattar,
  • Page 223 and 224: 221 Kirnber, R.M. and E.M. Hollis,
  • Page 225: 223 Wagner, F.A., 1966. "An Evaluat
  • Page 229 and 230: 4-. C'- -7 227 0 4 12 20 24 -. z ec
  • Page 231 and 232: DOUBLE PRECISION R INTEGER*4 I A =
  • Page 233 and 234: 231 GPNO(i13) = GPNO(K3)+1 NOG GPNO
  • Page 235 and 236: 43 121(SX,A1) 12 IF (A1.GE.AP) AX =
  • Page 237 and 238: 235 DELY(H2,M3) T3(i12,N3)-121(112,
  • Page 239 and 240: 82 2 237 sui entries of lane tar
  • Page 241 and 242: 108 106 CONTINUE 109 CONTINUE DO 10
  • Page 243 and 244: CAP CAP+CA(N3) 125 CONTINUE 00 128
  • Page 245 and 246: ci) 0 ci) a) '-I 0 a) 0 4-1 in 4-1
  • Page 247 and 248: I-i a) 0 ci) a) $4 a) L;l 4-I 0 -'-
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