SnowFlake Expansion
Alvin Nieves RosarioValerie Maier-
SperedelozziDaniel Berman
Agenda
•SnowFlake Project•Previous Projects•Studied Areas•Statistics– Vehicles– Roads– Fatalities
•Future work
SnowFlake Expansion
Why compare data?
•Look for similarities and differences in safety policies•Learn from past experiences•Adopt policies from each other
Previous Projects
SUNflower
•Developed in Europe•Compare three countries– Sweden– United Kingdom– Netherlands
SUNflower+6
•Included six countries
•Central– Czech Republic– Hungary– Slovenia
•Southern– Spain– Greece– Portugal
SnowFlake
•Comparison between a US state and a Europe country– Rhode Island– Czech Republic
SnowFlake expansion areas
SnowFlake expansion areas
CT MA TX RI PRPopulation (million) 3.502 6.45023.904 1.058 3.942
Area (sq km)
14,356
23,934
687,61
9 2,944 9,104 Density (population/sq km) 244 269 35 359 433GDP per capita(US dollar)
58,247
52,405
44,594
43,485
19,747
Road infrastructure
Units: thousands of kmCT MA TX RI PR
Roads & Motorways 9,866
12,723
353,48
0 2,011 5,007 Motorways 69 146 3,497 34 50
Roads outside urban areas 2,817 3,976
113,41
7 614 1,243
Local roads 6,980 8,601
236,56
6 1,364 3,715
Roads inside urban areas
24,094
44,728
133,90
9 8,368
20,832
Total length
33,960
57,452
487,38
9
10,379
25,839 Road Infrastructure Density 9.71 8.94 21.65 9.71 6.59
Vehicle fleet
First fatality recorded
•In 1869, the first road accident fatality occurred in a small town in the Irish Midlands.•In 1896, the first road fatality occurred in England.•In the US, in 1899 the first road fatality occurred in New York.
Fatalities
•Measure fatalities for different areas•Types of measurements– Per vehicle miles traveled (VMT)– Per capita– Per motor vehicles– Per area– Per road infrastructure– Total lane length
Fatalities
Fatalities
Fatalities
Fatalities
Fatalities
Fatalities
Fatalities
Road safety features
•Measure specific road safety aspect•Types of road safety features– Age groups– Drinking and driving– Motorcycles– Seatbelt use– Road users
Road safety features
Road safety features
Road safety features
New England
New England
CT MA RI NEFatality Rate 0.89 0.80 0.95 0.84Health Risk 8.17 6.87 7.50 7.34Per road infrastructure 8.41 7.68 7.73 7.93Per area 19.90 18.44 27.26 19.58Per VMT 0.93 0.81 0.95 0.90
New England
New England
New England
New England
New England
Future work
•Update current areas•Expand to more areas– States– Countries•Look for factors that ultimately influence road safety in these and other areas
Acknowledgements•URITC•FHWA•Dwight Eisenhower Fellowship Program
•Valerie Maier-Speredelozzi•Daniel Berman•Alberto Figueroa
Questions