| Mariarosaria Busiello
, Kornelija Ratkevičiūtė
, Daiva Žilionienė
, Francesca Russo
, Salvatore Antonio Biancardo
, Gianluca Dell’Acqua  Preliminary Canter of the Accident Rate in Italian and Lithuanian  
Road Networks   
			
				| Conference Information: | 9th International Conference on Environmental 
		Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |  
				| Source: | ICEE-2014 - International Conference on Environmental 
		Engineering |  
				| Book Series: | International Conference on Environmental Engineering 
		(ICEE) Selected papers |  
				| ISSN: | ISSN 2029-7092 online |  
				| ISBN: | 978-609-457-640-9 / 978-609-457-690-4 CD |  
				| Year: | 2014 |  
				| Publisher: | Vilnius Gediminas Technical University Press Technika |  
		View full text in PDF format Abstract One of the major tasks in developing transport systems is to decrease human losses caused by traffic accidents. The social consequences 
of accidents and the relating human losses were the main reason why the European Ministers of Transport decided to take measurements 
in  2002  and  then  in  2010  in order  to  decrease  the  number  of  traffic  accident  related  deaths  in Member States  Italian  and Lithuanian 
researchers have developed national statistical methods  to answer  to European directives  in  their own country. The aim of  this research 
study is to investigate the safety conditions of Italian and Lithuania two-lane rural roads in order to figure out why accidents occur and by 
what means they can be avoided. Current safety situation needs to be known for selecting locations to be treated as well as for evaluating 
the effects. In fact the deaths of persons and serious economic loss caused by road crashes demand a continuous attention in accordance 
with the rapid population growth and increasing economic activities that have resulted in many European cities. A study period of 5 years 
of the accident database was investigated in order to estimate the hazard conditions for each road segment by comparing the number of 
crashes over a specific  roadway  segment over a specific  time period with statistically  thresholds. In  this way, by knowing critical  road 
segments,  it makes  to  define  a  consistent  combination  of  interventions  according  also  to  the difference  between  design  and  operating 
speed value reducing accident  frequency,  its severity and social cost  for  the more  frequently expected and dangerous accident scenario. 
Further  investigations  on  accident  types  in  defined  most  hazardous  road  segments,  i.e.  where  calculated  severe  crash  rate,  must  be 
analyzed and selected road safety measures for improving safety situation at a site.   Keywords: homogenous road groups; accident rates;network safety approach;accident type;road safety; critical value.   |