is at least 1000 feet long is delineated by markers such as 26c and 26d every 500 feet this is followed by a deceleration area 25 which is 500 feet long and delineated by markers such as 26d and 26e this in turn is followed by a final warning area which is also 500 feet long and delineated by the three markers 26e 26g in the daytime the markers mentioned above may consist of panels with patterns of reflective and non reflective material which identify the various areas at night a light may be placed near or on the top of each panel the present invention further proposes to place narrow beam laser light sources 27 and 28 near markers 26a and 26b directed along the edges of the runway these illuminators indicate the direction of approach the ground profile and contour and can also illuminate the marker panels if present fig3 shows a preferred embodiment of a lighted night marker 30 according to the present invention the first and lowermost element of the marker is a metal stake 31 such as a lower round tube section fitted with a hardened solid pointed member at one end the opposite end is adapted to engage a reduced end portion of another round tube section of the same diameter and is sufficiently rugged to resist deformation when the pointed end of the stake is driven into hard soil an uppermost tube section 32 is provided with a reduced end which mates with the non pointed end of the stake and a metal receptacle 32a shaped to hold a standard commercially available snap terminal nine volt battery 32b the receptacle slopes upwardly.