this is the TIA guideline (Ireland)

1. Conference presentation
Shaharyar Jameel
Roll # 16050
Submitted to Dr Afzal
TIA (Traffic Impact Assessment)

2. Background
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Dublin was founded by the Vikings, who settled
in the city in the 9th century.
Dublin is the capital, largest, ancient and
financial hub of Ireland situated in East coast on
the mouth of the river Liffey.
The population of Dublin is 1.338 million.
Its attracts 9,932,100 overseas (tourist) each
year with increase rate up to 3.5% /year.
The most famous thing of Dublin is its beer(the
Guinness Brewery )

3. Transportation Facilities
There are Plenty of options for
getting A to B in Dublin.
This is a compacted city, which
means walking and cycling are
viable options for getting around.
Dublin bus connects most of the
parts of the city through 200 routes
that service 5000 stops.
DART is the Dublin electric train
service and it runs every 10-20
minutes Monday to Saturday.
Tram is also a part of
transportation system which
operate after every five minutes
during peak hour and every 10-
15minutes at other times.
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4. Concerned Authorities
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• The NRA (National Roads Authority)established the traffic impact assessment for Dublin Ireland.
• The NRA was established as a part of the Roads Act 1993 and commenced operations on 23
December 1993 in accordance with S.I. 407 of 1993.
• The headquarter is located at St. Martin’s house, Dublin.

5. Extent of TIA (Scope)
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The scoping study is a very important part of the TIA process. It is a precursor to the preparation of a
TIA and should be undertaken at the earliest stages of planning for development. Which includes.
 a planning application
 scoping discussion
 local data
 urban areas
 threshold approach
 On-going liaison
 the curtilage of a development

6. Methodology
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The introductory portion of the TIAS must contain the following information
Site Description
Provide a map showing the proposed site in relation to existing roadways for a radius of at least two (2.0) miles
of the project locus. Provide a zoning map that indicates current zoning of the site and adjacent parcels.
Existing and Proposed Site Uses
Include a site plan showing all land owned by the Applicant, the proposed building location(s), access point(s),
parking layout, circulation elements, and loading/service facilities for the site.
Existing condition of Traffic
Existing roadways and intersections
Traffic and pedestrian volumes

7. Traffic Volume
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8. Parking movement and space
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9. Development Plan
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10. Must be included
EXISTING
CONDITION:
current traffic, critical
links and junction etc.
PROPOSED
DEVELOPMENT:
Size and use.
PERSON TRIP
GENERATION:
identifying the total
persons trip by all mode
by peak hour.
TRAFFIC
FORCASTING:
methodology used,
reason for the
determination of the
growth rate applied.
MODAL SPLIT:
Allocating the person
trip to the modes of
travel
TRIP DISTRIBUTION:
Catchment area,
transfer trips, pass by
trips.
TRIP ASSESSMANT:
Turning movement at
site entrance and a
critical junctions in area.
ROAD IMPACT
Analysis of capacity for
base year opening year
and plus five years.
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11. Software
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 PICADY - Isolated priority junction.
 ARCADY – Isolated roundabout junction
 LinSig/TRANSYT – Individual signalized junctions and signalized junction networks
 VISSIM/PARAMICS - Complex junctions / network
 SATURN/VISSUM/CUBE/EMME – Strategic network modelling

12. Thank You
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