A Dynamic Information-Based Parking Guidance for Megacities considering Both Public and Private Parking
Table 3
Parking guidance performance depending on demand variation.
Number of generated parking requesting cars ()
Preference
Average driving distance (km/car)
Average walking distance (km/driver)
Average level of congestion (car/parking/unit time)
Average occupancy rate of parking spots
Average parking failure rate (car/parking/unit time)
Average requesting number (max number of requests)
Number of guided requests with reservation
Number of guided requests without reservation
Public parking (%)
Private parking (%)
Case I-1
(3803 parking spots/61845 cars)
Base preference
22.9605
0.72174
27.6702
80.4988
0
0.025043
1.2327 (8)
0
80128
I
21.5506 (↓6%)
0.98291 (↑36%)
22.7688 (↓18%)
89.8438 (↑12%)
24.9924
0.011089 (↓56%)
1.1347 (7) (↓8%)
26771
43109
II
21.4676
1.00060
22.5077
89.8472
25.4711
0.011221
1.1371 (7)
26765
43223
III
21.7281
0.90458
23.3576
90.1835
24.7503
0.011370
1.1389 (8)
26640
43457
IV
21.1605
1.00780
22.3043
90.1450
24.5330
0.011482
1.1385 (8)
26789
43433
V
21.6975
0.98089
24.7918
89.2112
24.5422
0.012658
1.1515 (7)
27477
43577
VI
21.5371
0.98867
22.2014
89.6899
24.9919
0.011002
1.1335 (7)
26814
43006
VII
21.6270
1.02280
22.6633
89.1475
24.9718
0.011636
1.1422 (7)
26727
43555
VIII
21.7081
0.96744
23.3832
90.4098
24.6744
0.010694
1.1239 (6)
26950
42639
Case I-2
(3803 parking spots/123690 cars)
Base preference
24.6585
0.50886
60.5467
84.5796
0
0.104270
1.2549 (10)
0
199860
I
22.7156 (↓8%)
0.81393 (↑60%)
49.7275 (↓18%)
95.3087 (↑13%)
29.7477
0.070314 (↓33%)
1.2474 (12) (↓1%)
27101
148084
II
22.6351
0.80623
49.4764
95.2266
29.9682
0.071097
1.2545 (10)
27325
148425
III
22.8763
0.73988
50.9695
95.4472
29.7705
0.067334
1.2334 (11)
27965
145066
IV
22.1031
0.83583
49.0828
95.5196
29.7831
0.071135
1.2469 (10)
27067
148729
V
22.9482
0.79219
54.6269
95.2399
29.7430
0.074098
1.2669 (11)
30917
147012
VI
22.6140
0.82576
48.1356
95.2445
29.9037
0.069554
1.2495 (11)
26865
147773
VII
23.0624
0.85870
48.5179
94.9319
30.4838
0.083321
1.2894 (11)
25863
158816
VIII
22.8299
0.80001
51.3338
95.5811
29.5631
0.060780
1.2047 (10)
28747
139505
Case I-3
(3803 parking spots/247374 cars)
Base preference
26.4823
0.28565
131.9973
88.0935
0
0.32702
1.1249 (8)
0
485902
I
24.9567 (↓6%)
0.45939 (↑61%)
113.4958 (↓14%)
98.1017 (↑11%)
35.7630
0.31971 (↓2%)
1.2098 (13) (↓8%)
22837
457770
II
24.8592
0.45077
113.0066
98.0833
35.8187
0.32751
1.2173 (12)
22575
463709
III
25.0646
0.41912
116.0776
98.1397
35.5323
0.30324
1.1960 (13)
23267
445322
IV
24.0608
0.46474
112.8768
98.1253
35.3169
0.32213
1.2082 (11)
22223
460117
V
25.0589
0.45520
126.5023
98.0938
35.7421
0.31832
1.2997 (14)
24719
454887
VI
24.8704
0.46062
109.7411
98.0430
35.8383
0.32518
1.2010 (13)
22395
462192
VII
25.7938
0.47779
108.9119
97.9611
36.2550
0.37879
1.2492 (17)
21808
501777
VIII
24.9187
0.45932
118.0292
98.1527
35.3867
0.27071
1.1739 (11)
23954
420854
The bold shows the best performance among preferences (I–VIII). The percentage written under each performance of preference I shows the relative increase/decrease compared to the base preference.
