YunnaWei PatternDetection

Yunna Wei - ISSS608 Visual Analytics and Applications_Assignment1

Introduction

Data Preparation

Overview Exploration

Pattern Detectoin

Reference

Multiple Days Pattern

Calendar View by Month

the left diagram well demonstrates that there are peak and off-peak periods in terms of traffic flow in the nature reserve. It is clear that there are much more traffic during months of June, July and August and the traffic load dropped significantly after September. What's more interesting is there is almost no traffic in months of December,January and February. This trend is more true for car types of 1(2 axle car (or motorcycle)), 2(2 axle truck) and 3(3. 3 axle truck)

Quarterly Pattern

Quarter 1	Quarter 2	Quarter 3	Quarter 4
Q1 Pattern: Q1 is the least popular season as the traffic only takes up 5.6% of the overall traffic. The routes in Q1 are quite short and a relative big portion of the traffic has routes of from one entrance to another entrance directly or only going through one gate, which can be assumed that these car ids are just using as the preserve as a convenient transportation option, in stead of actually visiting the preserve. There is almost no camping activities in Q1. In Q1, the traffic focuses on: Entrance4--Generalgate5--Generalgate2--Rangerstop0--Rangerstop2--Generalgate1 Entrance1--Generalgate7--Generalgate4 Entrance3--Generalgate1--Rangerstop2--Rangerstop0 Entrance2--Generalgate2--Rangerstop0--Rangerstop2 Entrance0--Generalgate1--Rangerstop2--Rangerstop0	Q2 Pattern: Q2 is a reasonably popular season and the traffic becomes much more compared to Q1 and the traffic routes are much longer and diverse. We can assume that more visitors in Q2. A big proportion of traffic come to the preserve for visiting and camping, instead of using the preserve a transportation option.	Q3 Pattern: Q3 is the most popular season. The traffic reaches the peak, taking up 55% of all the traffic over past 1 year. The traffic routes are normally very long and diverse.There are more camping actives in Q3.	Q4 Pattern: Q4 is very similar to Q1. The total traffic is little and traffic routes are much shorter and there is almost no camping activities. The traffic is dominated by the following routes: Entrance4--Generalgate5--Generalgate2--Rangerstop0--Rangerstop2--Generalgate1 Entrance1--Generalgate7--Generalgate4 Entrance3--Generalgate1--Rangerstop2--Rangerstop0 Entrance2--Generalgate2--Rangerstop0--Rangerstop2 Entrance0--Generalgate1--Rangerstop2--Rangerstop0

Traffic Pattern by Car Type

Car Type 1	Car Type 2	Car Type 3
			Patterns: Car types of 1, 2 and 3 display the same pattern that they tend to have long routes within the preserve and the routes are various
Car Type 4	Car Type 5	Car Type 6
			Patterns: Car types of 4, 5 and 6 display a different pattern from the other three. Their travelling routes are quite short. A proportion of them go through the preserve directly from one entrance to another.

Camping/NoCamping Pattern

Camping Routes
	Pattern: the camping routes are diverse and various. There is no particular popular route
NoCamping Routes
	Patterns: Visitors that travel through the preserve within one data mainly travel on the following routes: Entrance4--Generalgate5--Generalgate2--Rangerstop0--Rangerstop2--Generalgate1 Entrance2--Generalgate2--Rangerstop0--Rangerstop2--Generalgate1 Entrance3--Generalgate1--Rangerstop2--Rangerstop0--Generalgate2 Entrance1--Generalgate7--Generalgate4--Generalgate1--Rangerstop2--Rangerstop0--Generalgate2 Entrance0--Generalgate1--Rangerstop0--Rangerstop2--Generalgate2 The following routes are used by traffic for transportation options: entrance0--entrance3(two-way) entracen2--entrance4(two-way) entracen2--generalgate7--entrance1(two-way) entracen0--generalgate4--generalgate7--entrance1

Daily Pattern

Hourly Pattern

All cars combined
	Pattern:Most of the cars travel through the preserve from 6am in the morning to 6 pm in the afternoon
Only for camping
	Pattern:There are no cars coming into the camping sites before 5 am in the morning and after 10 pm at night

Day/Night Pattern

Night Trip
	Pattern: The night traffic normally has very short routes. What's more,a big proportion of the night traffic uses the preserve as a traffic option.
Day Trip
	Pattern: Day traffic tends to have very long travelling routes and a smaller proportion of the day traffic uses the preserve a traffic option.

Unusual Pattern

Usual Record

Pattern: There are several car ids whose travelling route are very long and stay in the preserve several months, such as car id:20154519024544-322. It makes sense to make the assumption that data is not correctly recorded. In total, there are 4 car ids identified with this pattern and they are circled in the the tree map. The 4 car ids are respectively: 20154112014114-381 20154519024544-322 20155705025759-63 20162904122951-717

rule violation

Pattern: There is a rule in the preserve that that the gate prevent general public traffic. However, the left chart identifies that cars of 4 axle(and above) truck go into the gates.