Functional purpose of pedestrian crossings; In addition to being continuity or uninterrupted in transportation, they are transportation structures that are on roads open to vehicle traffic with orientation and pedestrian safety, and they are urban reinforcement elements that can affect the city view with their aesthetic aspects.
The fact that streams pass through city centers in most European countries and the need for pedestrian overpasses born for this purpose has increased the frequency and importance of pedestrian overpass competitions. In recent years, in many cities such as Paris, London and Bilbao, pedestrian bridges have become one of the most prominent elements of the city landscape and beyond the city skyline. Pedestrian overpasses have a symbolic value as well as function. In developed countries, intensive vehicle traffic is not solved by means of traffic signaling. In our country, increasing vehicle traffic enters the city and intersects with pedestrian axes. As a result, the necessity to build a large number of pedestrian overpasses in the city centers.
These overpasses are constructed for pedestrians to provide a comfortable passage without interfering with vehicle traffic. Pedestrian overpasses are found in many cities of our country with various examples. However, planning, technical implementation, visual and aesthetic problems are observed in many of these overpasses.
If, indeed, a pedestrian overpass is deemed to be necessary anywhere, it is not only the question of building an overpass to transport a certain number of people from one point to another and calculating how it will stand. The problem is the creation of a pedestrian overpass that will contribute to the urban culture that occurs over time and drop by drop, connect the present to future generations and make the cities that individuals will be proud of having privileged from others, especially in the case of an urban overpass. Aesthetics is part of the right design.
Overpass aesthetics, as for all architectural elements at first glance is characterized by visual features. Shape, size, color and texture are the basic values of the structures. Then comes the settlement in the landscape and the establishment of the relationship with the environment. The orientation and dynamic effect of the overpass, a linear form, are other attributes related to its location.
Arrangements should be made in our lives in order to ensure full and effective participation of people with disabilities on equal terms with other individuals by encouraging and ensuring the enjoyment of fundamental rights and freedoms and strengthening respect for their dignity.
If level crossings cannot be made on high-traffic roads, there is an obligation to construct overpasses for the disabled. In the overpasses, if the environment is suitable, ramps with slope not exceeding 8% should be made instead of stairs. Stairs and ramps should not be exhausting, as the staircases in the overpasses make circulation difficult;
Pedestrian crossings with ramps or stairs installed at the place of use by pedestrians and disabled people should be constructed at a right angle through the vehicle.