Read through the TDM and MMLOS glossaries located in the TIA Guidelines document. Short definitions of various measures are also found in the MMLOS and TDM tool by hovering over the measure. When considering measures, think about who will occupy your project and what measures make sense for them.
Also consider the surrounding neighborhood and proximity of various services. Look at any deficiencies in the area that you may be able to improve, both for your residents/customers and others. Finally, contact the appropriate staff if you need to discuss a measure in detail.