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9 Another 20% stayed approximately two hours. As described above, it is not known how many of these vehicles stayed less than two hours (legal) or more than two hours (illegal). The remaining 15% were Definite Overstays (approximately three hours or longer). Remarkably, 5% stayed for approximately four hours or longer; usually this involved staying in the same space all morning or all afternoon (some vehicles did both, in different spaces). A handful of vehicles stayed in the same space all day. The average length-of-stay was 1.6 hours, but this hides the fact that many were overstays. Allowing for the uncertainty at the two-hour limit, we estimate that about 20% of stays were overstays. It is noticeable that 35% of the vehicles arriving at 8 AM overstayed. This figure is inflated by the all-day parkers (5% of 8 AM arrivals), but also reflects many people staying all morning (four-hour or five-hour stays, 9% of the 8 AM arrivals). Table Table Table Table 2222....4444: Length: Length: Length: Length----ofofofof----Stay, By Arrival Time (TwoStay, By Arrival Time (TwoStay, By Arrival Time (TwoStay, By Arrival Time (Two----Hour Spaces)Hour Spaces)Hour Spaces)Hour Spaces) (a) Length-of-Stay, by Arrival Time(a) Length-of-Stay, by Arrival Time(a) Length-of-Stay, by Arrival Time(a) Length-of-Stay, by Arrival Time 8am8am8am8am 9am9am9am9am 10am10am10am10am 11am11am11am11am 12pm12pm12pm12pm 1pm1pm1pm1pm 2pm2pm2pm2pm 3pm3pm3pm3pm 4pm4pm4pm4pm 5pm5pm5pm5pm All arrivalsAll arrivalsAll arrivalsAll arrivals Approx. 1 hour or less 117 19 64 66 120 122 129 71 75 126 909 Approx. 2 hours 17 16 52 49 17 13 24 43 47 278 Approx. 3 hours 40 5 14 8 5 12 9 39 132 Approx. 4 hours 17 1 1 2 0 10 8 39 Approx. 5 hours 2 0 4 4 2 7 19 Approx. 6 hours 1 0 2 1 1 5 Approx. 7 hours 1 1 0 2 4 Approx. 8 hours or more 11 0 2 13 Total 206 42 139 132 145 164 170 153 122 126 1399 Hours stayed (approx.)450 77 262 236 185 259 236 274 169 126 2274 Average length of stay (approx.)2.2 1.8 1.9 1.8 1.3 1.6 1.4 1.8 1.4 1.0 1.6 (see notes 1 and 2) (b) As % of People Arriving at That Time(b) As % of People Arriving at That Time(b) As % of People Arriving at That Time(b) As % of People Arriving at That Time 8am8am8am8am 9am9am9am9am 10am10am10am10am 11am11am11am11am 12pm12pm12pm12pm 1pm1pm1pm1pm 2pm2pm2pm2pm 3pm3pm3pm3pm 4pm4pm4pm4pm 5pm5pm5pm5pm AllAllAllAll Approx. 1 hour or less 57%45%46%50%83%74%76%46%61%100%65% Approx. 2 hours 8%38%37%37%12%8%14%28%39%20% Approx. 3 hours 19%12%10%6%3%7%5%25%9% Approx. 4 hours 8%2%1%2%0%6%5%3% Approx. 5 hours 1%0%3%3%1%4%1% Approx. 6 hours 0%0%1%1%1%0% Approx. 7 hours 0%2%0%2%0% Approx. 8 hours or more 5%0%1%1% Total 100%100%100%100%100%100%100%100%100%100%100% Definite Overstays 35%17%17%13%6%18%10%25%0%0%15% Definite or Possible Overstays 43%55%54%50%17%26%24%54%39%0%35% (see note 3) Notes: (1) This table excludes time spent parked before or after the restricted hours. For example, someone arriving just before the 4pm count and staying all evening would count as approx. 2 hours. Someone arriving at 6am and leaving between the 8am and 9am counts would count as 1 hour. (2) Average length of stay is approximate only. Because of the hourly survey counts, people staying less than one hour are counted as staying approximately one hour. People staying more than 8 hours are counted as staying 8 hours; this has a negligible effect. (3) The Definite Overstays are people staying approx. 3 hours or more. The Possible Overstays are people staying approx. 2 hours (i.e. present in exactly two consecutive counts). There are 'possible' because they could have stayed (for example) 1 hour 10 mins, or 2 hours 50 mins - there is no way to be sure whether they stayed more or less than two hours. These two lines thus show a lower and upper bound for the percentage of overstays. Length-of-stay and number of visits, by vehicle The length-of-stay analysis above was looking at individual stays, with no sense of which particular vehicles were involved. Now the analysis turns to understanding the behavior of individual vehicles. Table 2.5 shows how many separate stays each vehicle made in downtown, and also shows the longest stay made by each vehicle.