Access riders can come in many forms, both more detailed or more concise, whichever will best suit your needs and communication preferences. Depending on the industry that you work in, you may need to include different parts or have different key access needs you wish to communicate.
Some example access riders can be found on this page. You can either read these on the website or download for future reference. There are further links at the bottom of the page if you wish to do further research.

The Unlimited website is a good starting point for research about the process of creating your access rider
The examples below are from their document linked here:

The first example is an access rider for a performance artist. It is shorter, just a page long and contains fewer sections. It consicely details access needs, emergency contact information and provides a link for more information about Lupus, the individual's condition.

The second example is an access rider for a theatre and visual arts artist. This document is longer, five pages. It is comprehensive in the paragraphs writtern and includes more written in the personal section. It provides a visual description and some links to eqiuipment that would be useful to have.

Other Templates

This site is just one way of creating and structuring your access rider. If you want to use an alternative layout or look at different formats for inspiration there are links below from reccomended sources for this.

A template from Channel 4 with example sections. (Downloads in .pdf format)

A template from the Musicians Union (Downloads in editable .pdf format, with link at bottom to download alternative formats).

The following links are from disability arts and there is an article and download document.