Map Design Reviews: Wind, Pollution, Parks, and Erosion
This paper presents critical reviews of four thematic maps covering distinct geographic and environmental topics: wind energy resources in the western United States, ozone pollution monitoring in the Houston region, provincial park locations in British Columbia, and Louisiana's Gulf of Mexico shoreline erosion. For each map, the author identifies specific design weaknesses — including illegible legends, poor color contrast, oversized data density, and missing titles — and provides targeted recommendations for improvement. The reviews apply standard cartographic principles such as simplicity, readability, and effective use of color and symbol size to evaluate how well each map communicates its intended message to its audience.
- Wind Energy Map Review: Critique and redesign advice for Platts wind map
- Houston Ozone Monitoring Map Review: EPA Region 6 ozone map flaws and fixes
- British Columbia Parks Map Review: Park visitor map readability and detail issues
- Louisiana Coastal Erosion Map Review: Gulf shoreline erosion maps assessed for clarity
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What makes this paper effective
- Each review follows a consistent structure: overall assessment, specific design flaws, and a concrete bulleted list of actionable recommendations — making the analysis easy to follow.
- The author grounds criticism in user-centered reasoning, consistently explaining why a flaw matters to the intended audience rather than simply listing problems.
- Color choice and symbol legibility are evaluated with reference to cartographic best practices, such as using contrasting colors and reserving culturally coded hues (red/white) for effective visual communication.
Key academic technique demonstrated
The paper demonstrates applied evaluative analysis — the author applies an implicit framework of cartographic principles (simplicity, legibility, color contrast, appropriate symbolization) across four different maps, showing consistency of criteria while tailoring specific observations to each map's purpose and audience.
Structure breakdown
The paper is organized as four independent but parallel map reviews. Each section opens with a statement of the map's intended purpose and audience, proceeds to identify specific design weaknesses with explanations, and closes with a numbered or bulleted list of improvement recommendations. A brief reference citation follows each review. This parallel structure makes the paper easy to read and compare across cases.
Wind Energy Map Review
Platts, a provider of energy and metals information, created this map to inform consumers that it is progressive in its use of wind resources. However, for a number of reasons, consumers will have trouble understanding what Platts is actually trying to convey. The largest problem is the legend, which includes wind power density, wind power plants, transmission lines, and geography. Because the legend text is so small and contains so much information, it is impossible to determine what the symbols actually stand for. For instance, there are three types of wind power plants represented by green, light blue, and blue circles, but the reader is unlikely to know what these colors represent. On the map itself, wind power density is also impossible to locate, perhaps because the colors used are so similar to the map's background color. Lighter-colored transmission lines are likewise very difficult to identify for the same reason. The symbols used for geography, whatever they may represent, are difficult to locate because they are so small.
With all these flaws, there is significant room for improvement. The following recommendations would improve the map's display:
- Keep it simple. Platts might consider eliminating one variable, such as wind power density or geography. The average consumer is unlikely to understand wind power density, but would understand wind power plants if the display were not obscured by too much data.
- Include a title on the map that describes the data and its timeframe.
- Use a larger text size for the legend.
- Use colors in the legend that are distinct from the map's background color to increase readability.
- Increase the size of symbols so that they are more apparent.
These changes should give the user a better understanding of what the data actually represents.
Reference: Wind resources of the Western United States, 2007–2008 edition.
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