Ground-cement composites are commonly used in public road foundations constructed also in forested areas. Layers of cement stabilized ground are utilized in road construction as improved basement soil or basic foundation. Compacted cementground composite layers are independently utilized as road surfaces, surfaces of fire emergency airports, manoeuvre areas,forest car parks, wood depots and peat-lands surfaces in forest road construction. A relatively low percentage of the binder brings about a fairly high permeability of the utilized cement-ground and makes it more susceptible to flaking and cracking, as well as inflitration by precipitation water. The cements contain, apart from Portland clinker, other non-clinker mineral components, mainly industrial refuse. The source of chemical pollution of the cement binders may originate from materials and substitute fuel (e.g. industrial and domestic refuse). The general objective of the project was to evaluate the influence of cementground composite road foundations on the roadside ecotone zones in the fresh mixed broadleaved forest. The carried out investigationsaimed at recognizing the process of washing out of chemical compounds from foundations depending upon the applied cement and condition of the foundation. Five types of different cements with a different share of non-clinker components (fly-ashes and blast furnace slags) were used for ...
The development of the road infrastructure, migration ways of animals crossing with roads increase the possibility of a road incident with animals. The road incidents with animals are the source of multimillion financial losses and can cause permanent disabilities and even death of the road users. In order to increase safety and decrease the negative impact of road on the natural environment, the research should be conducted and the appropriate safety features decreasing the probability of animals rushing on to roads should be used.The aim of the study was to analyze the road incidents with animals on Polish roads between 2001 - 2011. In the study the road incidents with big animals i.e. with the deer (deer, fallow deer, elk, roe deer) and wild boars were analyzed. In the researched period the tendency of changes for: the number of road incidents with animals, the number of animals, the number of registered vehicles was analyzed. It was calculated, how often it came to a road incident with animals.In the researched period 2001 - 2011 it came to 153,269 road incidents with animals, including 151,882 collisions, 1,387 accidents in which 61 persons died, 1,804 were injured. The increase of road incidents with ...
The subject of this article is an analysis of updating lands use in process of preparation and setting out of roads investments. In order to determine the proper range of land use the terms of road and road right-of-way were compared. With an example of selected roads investments from capital city of Warsaw area, it has been investigated the time consumption of changing existing lad use in cadastre. The complex of factors having impact on possibilities of changing former land use on needs for elaboration of serveying documentation and registering by administrative power running cadastre were detarmined . Documents being basis for making change in land use and in cadastre for "roads", independently from investment fullfilment course in investment within range of roads, have been examined. There were presented two solutions , differing in moment of making change of land use long-lasting process of road construction. On the basis of SWOT analysis one identified strong and weak points of each approved solution. Consequences of out-of-date cadastre data have been determined. Land use updating importance for spatial planning was stressed. Regulation cohering was proposed in order to unify land use verification procedure in pursued investment. ...
Development of road infrastructure and growing number of vehicles on the roads increase the probability of road collisions with wild animals (fallow deer, stag, moose, roe deer or wild boar). In order to improve the safety and decrease the number of wildlife vehicle collisions, it is justifiable to determine the time intervals in which the probability of road accidents involving animals occurs, including seasonal, monthly and daily changes over the whole year. The research comprised an analysis of the structure of road collisions involving wild animals in the years 2001-2011, including the division into seasons, monthly and daily intervals. The data of the number of road traffic collisions involving animals were obtained through an analysis of the data base of Police Headquarters in Warsaw. The identified structure of seasonal and daily road collisions involving animals revealed that the highest number of accidents happened in autumn (29.36%) and spring (26.60%). Almost 10.88% of the analysed accidents happened in October and c.a. 10.62% in May. In the daily structure, the highest probability of collision was after the sunset. These changes are related to daily and seasonal migration due to animal behaviour and the traffic density. ...
