A Dynamic Information-Based Parking Guidance for Megacities considering Both Public and Private Parking
Table 4
Parking guidance performance depending on supply variation.
Case ()
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 II-1 Smaller area of city center Congested situation (3803 parking spots/61845 cars)
Base preference
21.6332
0.35187
25.6694
94.1055
0
0.026187
1.2746 (9)
0
80938
I
19.5915 (↓9%)
0.78156 (↑122%)
17.8303 (↓31%)
97.4196 (↑4%)
31.2051 (—)
0.010198 (↓61%)
1.1425 (6) (↓10%)
33870
35391
II
19.5360
0.75635
17.5453
97.3725
31.5946
0.010062
1.1410 (6)
33866
35296
III
19.9355
0.56967
19.7374
97.6051
30.2565
0.009528
33593
35204
IV
18.9900
0.90549
16.0418
97.6682
30.7745
0.010261
1.1403 (8)
33691
35638
V
19.7273
0.79276
20.1168
96.9211
30.7973
0.013251
1.1839 (8)
35171
36301
VI
19.5391
0.77311
17.2064
97.2644
31.5568
0.009945
1.1408 (8)
33911
35187
VII
19.6603
0.84388
17.4606
96.9932
31.4301
0.010497
1.1472 (7)
34092
35390
VIII
19.5973
0.76175
17.8334
97.3322
31.5509
0.010005
1.1400 (6)
33870
35279
Case II-2 Normal area of city center Congested situation (3803 parking spots/61845 cars)
Base preference
23.0837
0.71475
27.8862
93.7890
0
0.026844
1.2587
0
81411
I
21.5854 (↓6%)
0.98517 (↑38%)
22.7865 (↓18%)
97.3508 (↑4%)
24.9837 (—)
0.011691 (↓56%)
1.1429 (↓9%)
26366
43956
II
21.5306
0.97899
22.6756
97.3115
25.0311
0.011769
1.1459
26168
44211
III
21.7374
0.90594
23.3329
97.3520
24.6874
0.011711
1.1422
26308
44057
IV
21.1697
1.00820
22.2663
97.4146
24.6696
0.011872
1.1459
26268
44219
V
21.7382
0.97780
24.7694
97.0914
24.7457
0.013220
1.1595
26813
44669
VI
21.5284
0.99654
22.1451
97.3713
25.2128
0.011342
1.1431
26496
43616
VII
21.6357
1.02540
22.3054
97.1988
25.0922
0.012179
1.1515
26258
44424
VIII
21.7373
0.96680
23.3953
97.3151
24.7822
0.011032
1.1313
26363
43491
Case II-3 Normal area of city center Increased parking (7612 parking spots/61845 cars)
Base preference
22.0005
0.66235
12.8652
91.0065
0
0.0052893
1.1375
0
69860
I
20.9720 (↓5%)
0.92681 (↑40%)
10.1891 (↓21%)
93.5620 (↑3%)
22.4560 (—)
0.0024331 (↓54%)
1.0729 (↓6%)
32519
33236
II
20.9215
0.91611
10.1013
93.4981
23.0983
0.0025196
1.0742
32588
33246
III
21.2007
0.79048
10.6312
93.7910
21.6959
0.0023422
1.0690
32755
32818
IV
20.4944
0.99019
9.6568
93.8086
22.0150
0.0025229
1.0717
32617
33202
V
21.0366
0.93361
11.6132
92.2926
21.5380
0.0028037
1.0831
32930
33346
VI
20.9475
0.93321
9.8819
93.3371
23.2097
0.0023691
1.0700
32474
33141
VII
21.0110
0.96073
10.0913
93.1367
23.0383
0.0024561
1.0728
32699
33037
VIII
21.0401
0.91965
10.3102
93.6266
22.7484
0.0023373
1.0686
32639
32951
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.
