sense making - occurrence of traffic jam at busstops and roi

SENSE MAKINGANDINSIGHTS DISCOVERY

PRESENTED BY TEAM 2Ankur GaurMallikarjun Pillala MarriPandian GanesanRajat KumarWei Sheng ChanYang Ying

PROJECT FOR LAND TRANSPORT AUTHORITY

AGENDA

• Objective• Problem Descriptions• Strategy to tackle the problem• The Mechanics And Mathematics• Model Evaluation• Event Processing Network

PROJECT OUTLINE

Reducing the Occurrence of traffic

jamsat Expressways

for Drivers

Reducing the Occurrence of traffic

jamsat Bus-Stops/ROI

for Commuters/Taxis

OBJECTIVE

To improve the estimated

bus arrival time, so

commuters can make

proper decision.

To prevent area of

interests to be overly-

populated by taxis.

PROBLEM DESCRIPTION (1/2)Accurate bus timing is crucial to daily commuter lifestyle.• If the bus service is not coming in schedule, it raises a few

doubts in our mind: • Did I just missed the bus? • Should I continue waiting, probably it is late? • Or, should I take another incoming bus service

which would take a longer route to my workplace? • Did I just missed the last bus of the day? • Should I take cab going home instead, or wait?

•We prefer prompt update.

PROBLEM DESCRIPTION (2/2)

• During peak hours, certain area will be over-populated by taxis due to huge taxi demand. • Often, bus stops and taxi stands are next to each other. • Long taxi queue in taxi stand eventually hinders any bus

from entering the bus stops.

PROBLEM DESCRIPTION (2/2)

STRATEGY TO TACKLE THE PROBLEM

BUSES• EPN• Trigger if Bus Est Time

delay is significant• INSIGHTS • Under-Perform Bus

Services

TAXIS• EPN• Trigger if ROI Heat Value

goes beyond certain threshold

• INSIGHTS• To visualize in real-time,

the heat flow of ROI

THE MECHANISM AND MATHEMATICS (TAXI)

MODEL EVALUATION• Heat Value Only

(No Model)

• ARIMA Model

• Moving Average

• 1st Order Time Series Differencing

THE MECHANISM AND MATHEMATICS (BUS)

EVENT PROCESSING NETWORK

EVENT PROCESSING NETWORK

EVENTPRODUCER

EVENTCONSUMER

EVENTPROCESSING AGENT

• BUS STOPSSerangoon StnClementi StnAXA Tower (Shenton)Paya Lebar Stn6th Avenue StnMarsiling StnSuntec Conv CenterYew Tee StnLornie RoadEsplanadeChina Town

DATA VISUALIZATION / INSIGHTS• BUS STOPS

HarbourFront StnKhatib StnSengkang InterchangeMediaCorpTiong Bahru PlazaRedhill StnKallang StnTangs PlazaLucky Plaza

• REGION OF INTERESTSClementi StationSerangoon StationMarina Bay SandsSuntec Conv Center

• CHANGI ??

Data Source:LTA API Bus Arrival Time, Taxi Availability

DATA VISUALIZATION / INSIGHTS

DATA VISUALIZATION / INSIGHTS

CHALLENGES

• Event Streaming for all bus stops every minute• Using Heat Value to portray Taxi Demand and Supply• Gaussian curve as Radial Basis Function

(Hyperbolic Secant Distribution)

APPENDIX: ETL PROCESS

THANK YOU