Mario Šafran

Guidelines for improving logistic performances as drivers of the logistic industry development

Changes in the Croatian economy, introduced upon accession to the European Union, significantly influenced the needs for logistics services, and thus the logistic industry. In planning investments and development of their business, companies mainly rely on their own marketing activities and experience, which are of limited scope, without scientific approach and analysis. For this reason, a systematic research on the current demand for logistics services has been initiated, along with defining guidelines for improving Croatian logistics industry performance. Final conclusions are enhanced by comparative analysis of the research results and the logistic performance indicators provided by the World Bank. Guidelines for improving the logistic industry performance outlined in this paper should be considered as scientific contribution in defining national development strategy of the logistic sector.

IN-VEHICLE SAFETY SYSTEM PERFORMANCE DEPENDING ON THE QUALITY OF ROAD MARKINGS

When driving a motor vehicle, one of a drivers basic tasks is to follow a traffic route in such a way as not to endanger other drivers or pedestrians. In order to improve traffic safety, manufacturers install new safety systems in automobiles as soon as they are tested and become available. With this in mind, this paper discusses the recent introduction of an Involuntary Lane-crossing Alert System (ILAS) that warns drivers of unintended and incorrect crossing of a full or broken line during driving. Proper functioning of ILAS requires high quality road markings on the carriageway in order to allow this safety system to accurately identify them in time. Road markings can be defined as a set of longitudinal and transversal lines, signs, and symbols, the combination of which comprise the surfaces of the traffic infrastructure. These road markings represent a part of the entire traffic signalization and cannot be replaced by other markings or regulations. As such, road markings have the task of visually guiding the driver, allowing drivers to be able to forecast the route of their safe movement. Every crossing of a full or broken line at speeds greater than 80 km/h and without an activated indicator is identified by ILAS and the driver is warned by the vibration of the drivers seat.