The document summarizes changes in regional accessibility patterns in the Helsinki region based on updated travel time matrix data from 2013 and 2015. New public transport lines like a rail line to the airport and new bus routes have altered travel times. The most accessible locations by public transport and car remained similar between 2013 and 2015, though some destinations along new routes saw improved access. Examples of travel time maps show how specific destinations like Helsinki's central station became more accessible from certain areas, while accessibility to other places like Tikkurila decreased for some locations.

1. Vuokko Heikinheimo,
Henrikki Tenkanen,
Maria Salonen &
Tuuli Toivonen
Accessibility Research Group
University of Helsinki
Changes in Regional Accessibility Patterns
based on the Helsinki Region Travel Time Matrix

2. Contents of this Presentation
• Background:
– New Transport Lines in the Capital Region
– Helsinki Region Travel Time Matrix data
– What’s new in the 2015 dataset?
• Regional changes:
– Most accessible locations (”Best 10 %”)
• Examples:
– Changes in public transport accessibility
– Travel time maps for selected destinations
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES

3. New Transport Lines in the
Capital Region
• New rail line to the airport (Kehärata)
opened up for traffic on 1 July 2015
• New bus route network in Vantaa
was launched on 10 August 2015
• New transverse ”Trunk route” bus
560 between Rastila and Myyrmäki
More information on routes and schedules
from Helsinki Region Transport (HRT)
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES

4. Helsinki Region Travel Time Matrix
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
• Travel time and distance
information for walking, public
transportation and car from the
Capital Region of Helsinki.
• Results between all 250 x 250 m
grid squares in the Region are
available for 2013 and 2015
• More information is available at
the Accessibility Research
Group’s website:
http://blogs.helsinki.fi/accessibility/helsinki-region-travel-time-matrix/
Figure 1. Example visualization of travel time by public transportation during midday
traffic for one of the 13231 destinations (Helsinki Central Railway Station) included in
the Helsinki Region Travel Time Matrix datasets

5. What’s new in the 2015 dataset?
• Results for midday traffic are fully
comparable between the Travel Time
Matrix datasets from 2013 and 2015.
Comparisons in this presentation are
based on midday travel times.
• In addition, the 2015 dataset contains
information for morning rush-hour for
both public transportation and car.
• Furthermore, an additional dataset for
travel-related CO2 emissions can be
linked to the 2015 dataset. More
information on our website!
CO2..?
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES

6. Most Accessible Grid Squares
The most accessible 10 %
of the 250 x 250 m grid squares
by public tranportation and car
Car and public transportation
Car
Public transportation
2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Figure 2. The best 10 % of the 250 x 250 m statistic grid squares in the Capital Region in terms of accessibility by public transportation and car in 2015.
• This map shows the best 10 % of all
the 250 x 250 m statistic grid squares
in the Capital Region (n=13231) in
terms of accessibility by public
transportation and car based on the
Helsinki Region Travel Time Matrix
2013.
• Here, the accessibility of a grid
square is calculated as the median
travel time from all other grid squares
to the particular grid square using the
selected mode of transport.
• ”Hotspot” grid squares that are the
most accessible ones with both car
and public tranpsortation are shown
with purple on the map.

7. Most Accessible Grid Squares
• 10 % best grid squares
by public transportation
– The general pattern has
remained the same
– Destinations along new
transverse routes have
become better
Figure 3. The best 10 % of the 250 x 250 m statistic grid squares in the Capital Region in terms of public transport accessibility.
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Best 10 % (both years)
Best 10 % (only in 2015)
Best 10 % (only in 2013)

8. Most Accessible Grid Squares
Figure 4. The best 10 % of the 250 x 250 m statistic grid squares in the Capital Region in terms of accessibility by private car.
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Best 10 % (both years)
Best 10 % (only in 2015)
Best 10 % (only in 2013) • 10 % best grid squares by
private car
– The general pattern has
remained the same
– There is no clear pattern in
the grid squares that have
become more central

9. Changes in Public Transport
Accessibility
In the following slides, we visualize the changes in public transport
accessibility between 2013 and 2015 for selected destinations based
on the Helsinki Region Travel Time Matrix datasets.
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Highlights:
• Travel times to the Helsinki City Center have become faster from along the
new rail line in Vantaa (compare figures 5 and 6).
• Connections to the Helsinki-Vantaa airport have become better – more people
can travel faster to the airport using public transport (see figure 8 c).
• Transverse trips towards Myyrmäki have become faster (figures 11 and 12),
while some transverse trips have become slower, for example when traveling
towards Tikkurila in Vantaa (figures 13 and 14).

10. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Central Railway Station 2013
Figure 5.

11. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Central Railway Station 2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 6.

12. a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Helsinki-Vantaa Airport 2013
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
a.
c.
b.
Figure 7.

13. Helsinki-Vantaa Airport 2015
a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Figure 8.
Travel Time by Public Transport to..

14. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Matinkylä 2013
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 9.

15. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Matinkylä 2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 10.

16. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Myyrmäki 2013
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 11.

17. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Myyrmäki 2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 12.

18. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Tikkurila 2013
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 13.

19. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Tikkurila 2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 14.

20. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Vuosaari 2013
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 15.

21. a.
c.
b.
a. Travel time (minutes) to the
destination at midday traffic
by public transport.
b. Histogram of the travel
time values presented on
the map
c. Population curve: how
many people (2013
population) reach the
destination in given time
using the given mode of
transport.
Vuosaari 2015
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES
Travel Time by Public Transport to..
Figure 16.

22. References:
Data/Tools description:
Toivonen, T., M. Salonen, H. Tenkanen, P. Saarsalmi, T. Jaakkola & J. Järvi
(2014). Joukkoliikenteellä, autolla ja kävellen: Avoin saavutettavuusaineisto
pääkaupunkiseudulla. Terra 126: 3, 127-136.
Dataset DOI / Helsinki Region Travel Time Matrix 2015:
Toivonen, T., H. Tenkanen, V. Heikinheimo, T. Jaakkola, J. Järvi & M. Salonen
(2015). Helsinki Region-Travel Time Matrix 2015. DOI:
10.13140/RG.2.1.1901.3201
Dataset DOI / Helsinki Region Travel Time Matrix 2013:
Toivonen, T., M. Salonen, H. Tenkanen, P. Saarsalmi, T. Jaakkola & J. Järvi
(2014). Helsinki Region Travel Time Matrix 2014. DOI:
10.13140/RG.2.1.2159.3683
CONTENTS BACKGROUND REGIONAL CHANGES EXAMPLES REFERENCES