SYSTEMS APPROACH TO THE ROAD SAFETY PROBLEM IN TANZANIA
Road traffic accidents have been increasing in Tanzania, despite some considerable efforts to reduce the level of the problem. Road safety management is widely used worldwide in various forms and at different levels of refinement to manage traffic safety. This paper discusses and recommends the scientific methods that should be used to alleviate the road safety problems in Tanzania.
WHAT MAKES A GOOD SAFETY MANAGEMENT SYSTEM
Comments are made on safety management laws and organizations, and effective management concepts are discussed. It is noted that safety management systems can be an instrument of change. A good safety management system should include the following: a program for total accident reduction on all highways; a procedure for safety audits of all new construction and of existing highways; a program for hiring qualified personnel; a work program and budget that reflect accident costs and the potential reduction and savings; utilization of contemporary information systems for road users; feedback to design and maintenance operations of liability experience; safety evaluation of practices and procedures; and periodic review of agency safety activity and performance.
Investigations of dielectric gratings using electrodynamic models based on volume integral equations
Eigenmodes of planar and cylindrical dielectric gratings (DGs) and electromagnetic wave scattering from multiplayer DGs are investigated. The DG characteristics are calculated using numerical-analytical solution of integral equations (IEs).