This document summarizes different types of traffic studies. It discusses traffic volume studies, which measure the quantity of vehicles crossing a road section over time. It also covers origin and destination studies, which collect traffic data to draw desire lines showing traffic flows between locations. The purposes of these studies include planning road facilities, traffic operations and control, and transportation scheduling. Common study methods include manual counts, automatic counters, and surveying road users about trips.

1. TRAFFIC STUDIES
PRESENTED BY- DAVINDERPAL SINGH

2. INTRODUCTION
• Traffic studies are carried out to
analyse the traffic chracteristics.
• It helps in geometric design and
traffic control, which tends to a safe
and efficient traffic movement.
• The traffic studies for collection of
data is also known as Traffic Census.

3. TYPES OF TRAFFIC
STUDIES
• Traffic volume study
• Speed study
• Origin and destination study
• Traffic flow characteristics study
• Traffic capacity study
• Parking study
• Accident study

4. TRAFFIC VOLUME STUDY

5. TRAFFIC VOLUME
STUDY
• Traffic volume study is the quantity
of vehicles crossing a section of road
per unit time at any selected period.
• UNITS- vehicles/hr or vehicles/day.
• Can be called traffic flow.

6. USES OF TRAFFIC
VOLUME STUDIES
• Planning and Further Advancement
• Traffic operation and control
• Traffic pattern
• Structural design of pavement
• Regulatory measures

7. TYPES OF COUNTERS
AUTOMATIC COUNTERS
• Automatic counters are
also known as
mechanical counters .
They can automatically
record the total
numbers of vehicles
crossing a section of
the road in desired
period of time.
MANUAL COUNTERS
• The manual method is
the method in which a
group of peoples are
trained to record the
total numbers of
vehicles crossing a
section of the road in
desired period of time
on record sheets
manually.

8. ORIGIN AND
DESTINATION STUDIES
• THESE ARE THE TRAFFIC STUDIES CARRIED
OUT TO COLLECT TRAFFIC DATA AND
DESIRE LINES ARE DRAWN FROM THESE
DATA’S.
• DESIRE LINES ARE BASICALLY GRAPHICAL
REPRESENTATION OF FLOW OF TRAFFIC
BETWEEN TWO STATIONS. THICKNESS OF
DESIRE LINE DEPENDS UPON TRAFFIC
VOLUME.

10. PURPOSE
• TO CARRY OUT IMPROVEMENT IN ROAD
FACILITIES AND OTHER FACILITIES FOR
VEHICULAR TRAFFIC.
• TO PLAN THE SCHEDULE OF DIFFERENT
MODES OF TRANSPORTATION FOR THE
TRIP DEMAND OF COMMUTERS.

11. MECHANISM
• QUESTIONS ARE ASKED FROM ROAD USERS
DURING THEIR TRIP AT SELECTED
STATIONS.
• QUESTIONS LIKE ORIGIN AND
DESTINATION OF TRIP,REASON OF
STOPPAGE IF ANY,NUMBER OF
PASSENGERS,PURPOSE OF TRIP.

12. APPLICATIONS
• PLANNING NEW ROAD NETWORK
• PLANING PUBLIC TRANSPORTATION
SCHEDULE
• NEW BRIDGE AS PER TRAFFIC DEMAND
• DEMAND OF BYPASS AND TERMINALS
• LOCATE EXPRESSWAYS OR HIGHWAYS
ALONG DESIRE LINES

13. METHODS USED
• ROAD SIDE INTERVIEW METHOD
• LICENSE PLATE METHOD
• RETURN POST CARD METHOD
• TAG ON CAR METHOD
• HOME INTERVIEW METHOD
• WORK SPOT INTERVIEW METHOD

15. PRESENTATION OF O AND
D STUDIES
• TABLES
• DESIRE LINES
• PIE CHARTS
• CONTOURS