In this paper, based on video recordings of Orientation and Mobility (O&M) lessons for visually-disabled students, I will examine how occasioned maps (Psathas, 1979; Garfinkel, 2002), drawn in the student’s palm are interactionally traced, felt, and noticed in order to represent the shape of a crossing for all practical purposes. Touching will be examined from the perspective of the live production of "trails" on a specific region of the body, the palm of the hand. We will begin to question how such hand-drawing map episodes occur during O&M courses, stressing how the coparticipants establish a participation framework that facilitates the making of the drawing, hand-map drawings are based on lines that are neither evanescent nor permanent. Their “persistence” is not an intrinsic feature but a systematic multimodal accomplishment. We will show how the drawn lines become depictions of the streets and contribute to producing two contrasting geometrical representations of the layout of a junction.

在本文中，根据针对视障学生的定向和移动 (O&M) 课程的视频记录，我将研究如何交互地追踪、感受和识别在学生手掌中绘制的偶发地图（Psathas，1979；Garfinkel，2002）。注意到为了代表所有实际目的的十字路口的形状。将从身体特定区域（手掌）现场产生“痕迹”的角度来检查触摸。我们将开始质疑这样的手绘地图事件是如何在运维课程中发生的，强调参与者如何建立一个有利于绘图制作的参与框架，手绘地图的绘制基于既不是短暂的也不是永久的线条。他们的“坚持”并不是一种内在特征，而是一种系统的多模式成就。